77950275 has 48 divisors (see below), whose sum is σ = 143324160. Its totient is φ = 37123200.

The previous prime is 77950273. The next prime is 77950283. The reversal of 77950275 is 57205977.

It is not a de Polignac number, because 77950275 - 2¹ = 77950273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (77950273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 28936 + ... + 31514.

It is an arithmetic number, because the mean of its divisors is an integer number (2985920).

Almost surely, 2^77950275 is an apocalyptic number.

77950275 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

77950275 is a deficient number, since it is larger than the sum of its proper divisors (65373885).

77950275 is a wasteful number, since it uses less digits than its factorization.

77950275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2636 (or 2631 counting only the distinct ones).

The product of its (nonzero) digits is 154350, while the sum is 42.

The square root of 77950275 is about 8828.9452937483. The cubic root of 77950275 is about 427.1750548722.

The spelling of 77950275 in words is "seventy-seven million, nine hundred fifty thousand, two hundred seventy-five".