8497545408 has 840 divisors, whose sum is σ = 31392936960. Its totient is φ = 2258150400.

The previous prime is 8497545391. The next prime is 8497545449. The reversal of 8497545408 is 8045457948.

It is a happy number.

8497545408 is a `hidden beast` number, since 8 + 4 + 97 + 5 + 4 + 540 + 8 = 666.

It is a super-2 number, since 2×8497545408² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 274114353 + ... + 274114383.

It is an arithmetic number, because the mean of its divisors is an integer number (37372544).

Almost surely, 2^8497545408 is an apocalyptic number.

8497545408 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8497545408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15696468480).

8497545408 is an abundant number, since it is smaller than the sum of its proper divisors (22895391552).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8497545408 is a wasteful number, since it uses less digits than its factorization.

8497545408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119 (or 89 counting only the distinct ones).

The product of its (nonzero) digits is 6451200, while the sum is 54.

The square root of 8497545408 is about 92182.1317175948. The cubic root of 8497545408 is about 2040.6310850271.

The spelling of 8497545408 in words is "eight billion, four hundred ninety-seven million, five hundred forty-five thousand, four hundred eight".