97651040 has 48 divisors (see below), whose sum is σ = 231599088. Its totient is φ = 38908416.

The previous prime is 97651019. The next prime is 97651049. The reversal of 97651040 is 4015679.

It is a happy number.

It is a super-2 number, since 2×97651040² = 19071451226163200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 97650988 and 97651006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97651049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45839 + ... + 47921.

It is an arithmetic number, because the mean of its divisors is an integer number (4824981).

Almost surely, 2^97651040 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 97651040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115799544).

97651040 is an abundant number, since it is smaller than the sum of its proper divisors (133948048).

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

97651040 is a wasteful number, since it uses less digits than its factorization.

97651040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2391 (or 2383 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 97651040 is about 9881.8540770444. The cubic root of 97651040 is about 460.4957478280.

The spelling of 97651040 in words is "ninety-seven million, six hundred fifty-one thousand, forty".