77073812 has 48 divisors (see below), whose sum is σ = 145248768. Its totient is φ = 35717760.

The previous prime is 77073811. The next prime is 77073839. The reversal of 77073812 is 21837077.

It is a super-2 number, since 2×77073812² = 11880744992422688, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77073811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 490838 + ... + 490994.

It is an arithmetic number, because the mean of its divisors is an integer number (3026016).

Almost surely, 2^77073812 is an apocalyptic number.

It is an amenable number.

77073812 is a deficient number, since it is larger than the sum of its proper divisors (68174956).

77073812 is a wasteful number, since it uses less digits than its factorization.

77073812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336 (or 334 counting only the distinct ones).

The product of its (nonzero) digits is 16464, while the sum is 35.

The square root of 77073812 is about 8779.1692089856. The cubic root of 77073812 is about 425.5679824619.

The spelling of 77073812 in words is "seventy-seven million, seventy-three thousand, eight hundred twelve".