80774437 has 4 divisors (see below), whose sum is σ = 83380096. Its totient is φ = 78168780.

The previous prime is 80774417. The next prime is 80774443. The reversal of 80774437 is 73447708.

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.

It is a cyclic number.

It is not a de Polignac number, because 80774437 - 2²³ = 72385829 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 80774437.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80774417) 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, 1302783 + ... + 1302844.

It is an arithmetic number, because the mean of its divisors is an integer number (20845024).

Almost surely, 2^80774437 is an apocalyptic number.

It is an amenable number.

80774437 is a deficient number, since it is larger than the sum of its proper divisors (2605659).

80774437 is a wasteful number, since it uses less digits than its factorization.

80774437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2605658.

The product of its (nonzero) digits is 131712, while the sum is 40.

The square root of 80774437 is about 8987.4599860027. The cubic root of 80774437 is about 432.2728703736.

The spelling of 80774437 in words is "eighty million, seven hundred seventy-four thousand, four hundred thirty-seven".