77481652 has 12 divisors (see below), whose sum is σ = 135828000. Its totient is φ = 38673656.

The previous prime is 77481643. The next prime is 77481667. The reversal of 77481652 is 25618477.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 14152 + ... + 18847.

It is an arithmetic number, because the mean of its divisors is an integer number (11319000).

Almost surely, 2^77481652 is an apocalyptic number.

It is an amenable number.

77481652 is a deficient number, since it is larger than the sum of its proper divisors (58346348).

77481652 is a wasteful number, since it uses less digits than its factorization.

77481652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33590 (or 33588 counting only the distinct ones).

The product of its digits is 94080, while the sum is 40.

The square root of 77481652 is about 8802.3662727701. The cubic root of 77481652 is about 426.3173005420.

The spelling of 77481652 in words is "seventy-seven million, four hundred eighty-one thousand, six hundred fifty-two".