76221370 has 32 divisors (see below), whose sum is σ = 148661568. Its totient is φ = 28025088.

The previous prime is 76221349. The next prime is 76221373. The reversal of 76221370 is 7312267.

It is not an unprimeable number, because it can be changed into a prime (76221373) 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 15 ways as a sum of consecutive naturals, for example, 2097 + ... + 12523.

It is an arithmetic number, because the mean of its divisors is an integer number (4645674).

Almost surely, 2^76221370 is an apocalyptic number.

76221370 is a deficient number, since it is larger than the sum of its proper divisors (72440198).

76221370 is a wasteful number, since it uses less digits than its factorization.

76221370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10494.

The product of its (nonzero) digits is 3528, while the sum is 28.

The square root of 76221370 is about 8730.4850953426. The cubic root of 76221370 is about 423.9932247938.

The spelling of 76221370 in words is "seventy-six million, two hundred twenty-one thousand, three hundred seventy".