77210942 has 16 divisors (see below), whose sum is σ = 118635840. Its totient is φ = 37670688.

The previous prime is 77210941. The next prime is 77210951. The reversal of 77210942 is 24901277.

It is a junction number, because it is equal to n+sod(n) for n = 77210899 and 77210908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77210941) 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 7 ways as a sum of consecutive naturals, for example, 36284 + ... + 38352.

It is an arithmetic number, because the mean of its divisors is an integer number (7414740).

Almost surely, 2^77210942 is an apocalyptic number.

77210942 is a deficient number, since it is larger than the sum of its proper divisors (41424898).

77210942 is a wasteful number, since it uses less digits than its factorization.

77210942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2515.

The product of its (nonzero) digits is 7056, while the sum is 32.

The square root of 77210942 is about 8786.9757027091. The cubic root of 77210942 is about 425.8202236135.

The spelling of 77210942 in words is "seventy-seven million, two hundred ten thousand, nine hundred forty-two".