78056437 has 8 divisors (see below), whose sum is σ = 79166304. Its totient is φ = 76950768.

The previous prime is 78056413. The next prime is 78056443. The reversal of 78056437 is 73465087.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 78056437 - 2¹⁵ = 78023669 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 78056437.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78056837) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60198 + ... + 61480.

It is an arithmetic number, because the mean of its divisors is an integer number (9895788).

Almost surely, 2^78056437 is an apocalyptic number.

It is an amenable number.

78056437 is a deficient number, since it is larger than the sum of its proper divisors (1109867).

78056437 is a wasteful number, since it uses less digits than its factorization.

78056437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2099.

The product of its (nonzero) digits is 141120, while the sum is 40.

The square root of 78056437 is about 8834.9554045281. The cubic root of 78056437 is about 427.3688929148.

The spelling of 78056437 in words is "seventy-eight million, fifty-six thousand, four hundred thirty-seven".