76921210 has 16 divisors (see below), whose sum is σ = 139456800. Its totient is φ = 30546576.

The previous prime is 76921193. The next prime is 76921213. The reversal of 76921210 is 1212967.

It is a happy number.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (76921213) 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, 26280 + ... + 29059.

It is an arithmetic number, because the mean of its divisors is an integer number (8716050).

Almost surely, 2^76921210 is an apocalyptic number.

76921210 is a deficient number, since it is larger than the sum of its proper divisors (62535590).

76921210 is a wasteful number, since it uses less digits than its factorization.

76921210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55485.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 76921210 is about 8770.4737614339. The cubic root of 76921210 is about 425.2869296561.

The spelling of 76921210 in words is "seventy-six million, nine hundred twenty-one thousand, two hundred ten".