77080047 has 16 divisors (see below), whose sum is σ = 114504192. Its totient is φ = 45720320.

The previous prime is 77080039. The next prime is 77080051. The reversal of 77080047 is 74008077.

It is a cyclic number.

It is not a de Polignac number, because 77080047 - 2³ = 77080039 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77080097) 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, 23298 + ... + 26399.

It is an arithmetic number, because the mean of its divisors is an integer number (7156512).

Almost surely, 2^77080047 is an apocalyptic number.

77080047 is a deficient number, since it is larger than the sum of its proper divisors (37424145).

77080047 is a wasteful number, since it uses less digits than its factorization.

77080047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49758.

The product of its (nonzero) digits is 10976, while the sum is 33.

The square root of 77080047 is about 8779.5243037422. The cubic root of 77080047 is about 425.5794578029.

The spelling of 77080047 in words is "seventy-seven million, eighty thousand, forty-seven".