78937495 has 64 divisors (see below), whose sum is σ = 128378880. Its totient is φ = 45163008.

The previous prime is 78937493. The next prime is 78937499. The reversal of 78937495 is 59473987.

It is a cyclic number.

It is not a de Polignac number, because 78937495 - 2¹ = 78937493 is a prime.

It is a super-2 number, since 2×78937495² = 12462256233750050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78937493) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 198637 + ... + 199033.

It is an arithmetic number, because the mean of its divisors is an integer number (2005920).

Almost surely, 2^78937495 is an apocalyptic number.

78937495 is a deficient number, since it is larger than the sum of its proper divisors (49441385).

78937495 is a wasteful number, since it uses less digits than its factorization.

78937495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464.

The product of its digits is 1905120, while the sum is 52.

The square root of 78937495 is about 8884.6775405751. The cubic root of 78937495 is about 428.9708487173.

The spelling of 78937495 in words is "seventy-eight million, nine hundred thirty-seven thousand, four hundred ninety-five".