973698840 has 256 divisors, whose sum is σ = 3391488000. Its totient is φ = 248209920.

The previous prime is 973698821. The next prime is 973698857. The reversal of 973698840 is 48896379.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4251846 + ... + 4252074.

It is an arithmetic number, because the mean of its divisors is an integer number (13248000).

Almost surely, 2^973698840 is an apocalyptic number.

973698840 is a gapful number since it is divisible by the number (90) 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 973698840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1695744000).

973698840 is an abundant number, since it is smaller than the sum of its proper divisors (2417789160).

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

973698840 is a wasteful number, since it uses less digits than its factorization.

973698840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407 (or 397 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 54.

The square root of 973698840 is about 31204.1478012139. The cubic root of 973698840 is about 991.1549422852.

The spelling of 973698840 in words is "nine hundred seventy-three million, six hundred ninety-eight thousand, eight hundred forty".