77083047 has 12 divisors (see below), whose sum is σ = 113932104. Its totient is φ = 50193360.

The previous prime is 77083043. The next prime is 77083129. The reversal of 77083047 is 74038077.

It is a happy number.

It is not a de Polignac number, because 77083047 - 2² = 77083043 is a prime.

It is a super-2 number, since 2×77083047² = 11883592269608418, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77083043) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 99204 + ... + 99977.

It is an arithmetic number, because the mean of its divisors is an integer number (9494342).

Almost surely, 2^77083047 is an apocalyptic number.

77083047 is a deficient number, since it is larger than the sum of its proper divisors (36849057).

77083047 is a wasteful number, since it uses less digits than its factorization.

77083047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199230 (or 199227 counting only the distinct ones).

The product of its (nonzero) digits is 32928, while the sum is 36.

The square root of 77083047 is about 8779.6951541611. The cubic root of 77083047 is about 425.5849789975.

The spelling of 77083047 in words is "seventy-seven million, eighty-three thousand, forty-seven".