77981483 has 4 divisors (see below), whose sum is σ = 78025248. Its totient is φ = 77937720.

The previous prime is 77981479. The next prime is 77981503. The reversal of 77981483 is 38418977.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 77981483 - 2² = 77981479 is a prime.

It is a super-2 number, since 2×77981483² = 12162223381758578, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77981443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19091 + ... + 22812.

It is an arithmetic number, because the mean of its divisors is an integer number (19506312).

Almost surely, 2^77981483 is an apocalyptic number.

77981483 is a deficient number, since it is larger than the sum of its proper divisors (43765).

77981483 is a wasteful number, since it uses less digits than its factorization.

77981483 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43764.

The product of its digits is 338688, while the sum is 47.

The square root of 77981483 is about 8830.7124854114. The cubic root of 77981483 is about 427.2320548867.

The spelling of 77981483 in words is "seventy-seven million, nine hundred eighty-one thousand, four hundred eighty-three".