97885437 has 16 divisors (see below), whose sum is σ = 140743680. Its totient is φ = 60155712.

The previous prime is 97885433. The next prime is 97885441. The reversal of 97885437 is 73458879.

It is an interprime number because it is at equal distance from previous prime (97885433) and next prime (97885441).

It is not a de Polignac number, because 97885437 - 2² = 97885433 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 97885437.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97885433) 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, 41239 + ... + 43547.

It is an arithmetic number, because the mean of its divisors is an integer number (8796480).

Almost surely, 2^97885437 is an apocalyptic number.

It is an amenable number.

97885437 is a deficient number, since it is larger than the sum of its proper divisors (42858243).

97885437 is a wasteful number, since it uses less digits than its factorization.

97885437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3412.

The product of its digits is 1693440, while the sum is 51.

The square root of 97885437 is about 9893.7069392619. The cubic root of 97885437 is about 460.8639042518.

It can be divided in two parts, 9788 and 5437, that added together give a triangular number (15225 = T₁₇₄).

The spelling of 97885437 in words is "ninety-seven million, eight hundred eighty-five thousand, four hundred thirty-seven".