77201331 has 8 divisors (see below), whose sum is σ = 103019664. Its totient is φ = 51425280.

The previous prime is 77201309. The next prime is 77201339. The reversal of 77201331 is 13310277.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 77201331 - 2¹³ = 77193139 is a prime.

It is a super-2 number, since 2×77201331² = 11920091016343122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (77201339) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6030 + ... + 13811.

It is an arithmetic number, because the mean of its divisors is an integer number (12877458).

Almost surely, 2^77201331 is an apocalyptic number.

77201331 is a deficient number, since it is larger than the sum of its proper divisors (25818333).

77201331 is a wasteful number, since it uses less digits than its factorization.

77201331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21141.

The product of its (nonzero) digits is 882, while the sum is 24.

The square root of 77201331 is about 8786.4287967296. The cubic root of 77201331 is about 425.8025545807.

The spelling of 77201331 in words is "seventy-seven million, two hundred one thousand, three hundred thirty-one".