73430836 has 12 divisors (see below), whose sum is σ = 131638500. Its totient is φ = 35819840.

The previous prime is 73430821. The next prime is 73430867. The reversal of 73430836 is 63803437.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11902500 + 61528336 = 3450^2 + 7844^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 223711 + ... + 224038.

It is an arithmetic number, because the mean of its divisors is an integer number (10969875).

Almost surely, 2^73430836 is an apocalyptic number.

It is an amenable number.

73430836 is a deficient number, since it is larger than the sum of its proper divisors (58207664).

73430836 is a wasteful number, since it uses less digits than its factorization.

73430836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447794 (or 447792 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 34.

The square root of 73430836 is about 8569.1794239589. The cubic root of 73430836 is about 418.7545036718.

The spelling of 73430836 in words is "seventy-three million, four hundred thirty thousand, eight hundred thirty-six".