97782895 has 16 divisors (see below), whose sum is σ = 141991488. Its totient is φ = 63106560.

The previous prime is 97782863. The next prime is 97782899. The reversal of 97782895 is 59828779.

It is not a de Polignac number, because 97782895 - 2⁵ = 97782863 is a prime.

It is a super-2 number, since 2×97782895² = 19122989109162050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97782899) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81576 + ... + 82765.

It is an arithmetic number, because the mean of its divisors is an integer number (8874468).

Almost surely, 2^97782895 is an apocalyptic number.

97782895 is a deficient number, since it is larger than the sum of its proper divisors (44208593).

97782895 is a wasteful number, since it uses less digits than its factorization.

97782895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164370.

The product of its digits is 2540160, while the sum is 55.

The square root of 97782895 is about 9888.5233983644. The cubic root of 97782895 is about 460.7029187177.

The spelling of 97782895 in words is "ninety-seven million, seven hundred eighty-two thousand, eight hundred ninety-five".