78937275 has 24 divisors (see below), whose sum is σ = 135013680. Its totient is φ = 40647040.

The previous prime is 78937237. The next prime is 78937277. The reversal of 78937275 is 57273987.

It is not a de Polignac number, because 78937275 - 2¹⁶ = 78871739 is a prime.

It is not an unprimeable number, because it can be changed into a prime (78937277) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15972 + ... + 20321.

It is an arithmetic number, because the mean of its divisors is an integer number (5625570).

Almost surely, 2^78937275 is an apocalyptic number.

78937275 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

78937275 is a deficient number, since it is larger than the sum of its proper divisors (56076405).

78937275 is a wasteful number, since it uses less digits than its factorization.

78937275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36335 (or 36330 counting only the distinct ones).

The product of its digits is 740880, while the sum is 48.

The square root of 78937275 is about 8884.6651597007. The cubic root of 78937275 is about 428.9704502008.

The spelling of 78937275 in words is "seventy-eight million, nine hundred thirty-seven thousand, two hundred seventy-five".