77630983 has 8 divisors (see below), whose sum is σ = 78286208. Its totient is φ = 76978944.

The previous prime is 77630977. The next prime is 77630989. The reversal of 77630983 is 38903677.

It is an interprime number because it is at equal distance from previous prime (77630977) and next prime (77630989).

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

It is a cyclic number.

It is not a de Polignac number, because 77630983 - 2⁵ = 77630951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77630989) 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, 74635 + ... + 75667.

It is an arithmetic number, because the mean of its divisors is an integer number (9785776).

Almost surely, 2^77630983 is an apocalyptic number.

77630983 is a deficient number, since it is larger than the sum of its proper divisors (655225).

77630983 is a wasteful number, since it uses less digits than its factorization.

77630983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1593.

The product of its (nonzero) digits is 190512, while the sum is 43.

The square root of 77630983 is about 8810.8446246657. The cubic root of 77630983 is about 426.5910063459.

The spelling of 77630983 in words is "seventy-seven million, six hundred thirty thousand, nine hundred eighty-three".