77961063 has 16 divisors (see below), whose sum is σ = 108518400. Its totient is φ = 49727040.

The previous prime is 77961061. The next prime is 77961089. The reversal of 77961063 is 36016977.

It is not a de Polignac number, because 77961063 - 2¹ = 77961061 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77961061) 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, 3568 + ... + 12986.

It is an arithmetic number, because the mean of its divisors is an integer number (6782400).

Almost surely, 2^77961063 is an apocalyptic number.

77961063 is a deficient number, since it is larger than the sum of its proper divisors (30557337).

77961063 is a wasteful number, since it uses less digits than its factorization.

77961063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9542.

The product of its (nonzero) digits is 47628, while the sum is 39.

The square root of 77961063 is about 8829.5562176137. The cubic root of 77961063 is about 427.1947603914.

The spelling of 77961063 in words is "seventy-seven million, nine hundred sixty-one thousand, sixty-three".