77489001 has 16 divisors (see below), whose sum is σ = 119790720. Its totient is φ = 49412880.

The previous prime is 77488993. The next prime is 77489003. The reversal of 77489001 is 10098477.

It is not a de Polignac number, because 77489001 - 2³ = 77488993 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77489003) 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, 61770 + ... + 63011.

It is an arithmetic number, because the mean of its divisors is an integer number (7486920).

Almost surely, 2^77489001 is an apocalyptic number.

It is an amenable number.

77489001 is a deficient number, since it is larger than the sum of its proper divisors (42301719).

77489001 is a wasteful number, since it uses less digits than its factorization.

77489001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124813 (or 124807 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 36.

The square root of 77489001 is about 8802.7837074416. The cubic root of 77489001 is about 426.3307786008.

The spelling of 77489001 in words is "seventy-seven million, four hundred eighty-nine thousand, one".