97782804 has 72 divisors (see below), whose sum is σ = 291619328. Its totient is φ = 27034560.

The previous prime is 97782781. The next prime is 97782851. The reversal of 97782804 is 40828779.

It is a super-2 number, since 2×97782804² = 19122953516204832, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 97782804.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1554 + ... + 14070.

Almost surely, 2^97782804 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 97782804, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145809664).

97782804 is an abundant number, since it is smaller than the sum of its proper divisors (193836524).

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

97782804 is a wasteful number, since it uses less digits than its factorization.

97782804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12565 (or 12560 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 45.

The square root of 97782804 is about 9888.5187970697. The cubic root of 97782804 is about 460.7027758025.

The spelling of 97782804 in words is "ninety-seven million, seven hundred eighty-two thousand, eight hundred four".