72477763 has 2 divisors, whose sum is σ = 72477764. Its totient is φ = 72477762.

The previous prime is 72477751. The next prime is 72477767. The reversal of 72477763 is 36777427.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 72477763 - 2²⁵ = 38923331 is a prime.

It is a super-2 number, since 2×72477763² = 10506052258968338, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (72477767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36238881 + 36238882.

It is an arithmetic number, because the mean of its divisors is an integer number (36238882).

Almost surely, 2^72477763 is an apocalyptic number.

72477763 is a deficient number, since it is larger than the sum of its proper divisors (1).

72477763 is an equidigital number, since it uses as much as digits as its factorization.

72477763 is an evil number, because the sum of its binary digits is even.

The product of its digits is 345744, while the sum is 43.

The square root of 72477763 is about 8513.3872812177. The cubic root of 72477763 is about 416.9349100099.

It can be divided in two parts, 724 and 77763, that added together give a palindrome (78487).

The spelling of 72477763 in words is "seventy-two million, four hundred seventy-seven thousand, seven hundred sixty-three".