76985437 has 4 divisors (see below), whose sum is σ = 78775840. Its totient is φ = 75195036.

The previous prime is 76985423. The next prime is 76985443. The reversal of 76985437 is 73458967.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 73458967 = 461 ⋅159347.

It is a cyclic number.

It is not a de Polignac number, because 76985437 - 2¹⁵ = 76952669 is a prime.

It is a pancake number, because a pancake can be divided into 76985437 parts by 12408 straight cuts.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76985407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 895137 + ... + 895222.

It is an arithmetic number, because the mean of its divisors is an integer number (19693960).

Almost surely, 2^76985437 is an apocalyptic number.

It is an amenable number.

76985437 is a deficient number, since it is larger than the sum of its proper divisors (1790403).

76985437 is a wasteful number, since it uses less digits than its factorization.

76985437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1790402.

The product of its digits is 1270080, while the sum is 49.

The square root of 76985437 is about 8774.1345442157. The cubic root of 76985437 is about 425.4052641820.

The spelling of 76985437 in words is "seventy-six million, nine hundred eighty-five thousand, four hundred thirty-seven".