77421352 has 32 divisors (see below), whose sum is σ = 153309600. Its totient is φ = 36552384.

The previous prime is 77421317. The next prime is 77421389. The reversal of 77421352 is 25312477.

It is an unprimeable number.

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, 59703 + ... + 60985.

It is an arithmetic number, because the mean of its divisors is an integer number (4790925).

Almost surely, 2^77421352 is an apocalyptic number.

It is an amenable number.

77421352 is a deficient number, since it is larger than the sum of its proper divisors (75888248).

77421352 is a wasteful number, since it uses less digits than its factorization.

77421352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1705 (or 1701 counting only the distinct ones).

The product of its digits is 11760, while the sum is 31.

The square root of 77421352 is about 8798.9403907516. The cubic root of 77421352 is about 426.2066782022.

The spelling of 77421352 in words is "seventy-seven million, four hundred twenty-one thousand, three hundred fifty-two".