97780095 has 32 divisors (see below), whose sum is σ = 198666240. Its totient is φ = 44699040.

The previous prime is 97780093. The next prime is 97780097. The reversal of 97780095 is 59008779.

It is an interprime number because it is at equal distance from previous prime (97780093) and next prime (97780097).

It is not a de Polignac number, because 97780095 - 2¹ = 97780093 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 97780095.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97780091) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 50791 + ... + 52680.

It is an arithmetic number, because the mean of its divisors is an integer number (6208320).

Almost surely, 2^97780095 is an apocalyptic number.

97780095 is an abundant number, since it is smaller than the sum of its proper divisors (100886145).

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

97780095 is a wasteful number, since it uses less digits than its factorization.

97780095 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103492 (or 103486 counting only the distinct ones).

The product of its (nonzero) digits is 158760, while the sum is 45.

The square root of 97780095 is about 9888.3818190845. The cubic root of 97780095 is about 460.6985212871.

The spelling of 97780095 in words is "ninety-seven million, seven hundred eighty thousand, ninety-five".