73531396 has 6 divisors (see below), whose sum is σ = 128679950. Its totient is φ = 36765696.

The previous prime is 73531379. The next prime is 73531433. The reversal of 73531396 is 69313537.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 70056900 + 3474496 = 8370^2 + 1864^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9191421 + ... + 9191428.

Almost surely, 2^73531396 is an apocalyptic number.

It is an amenable number.

73531396 is a deficient number, since it is larger than the sum of its proper divisors (55148554).

73531396 is a wasteful number, since it uses less digits than its factorization.

73531396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18382853 (or 18382851 counting only the distinct ones).

The product of its digits is 51030, while the sum is 37.

The square root of 73531396 is about 8575.0449561504. The cubic root of 73531396 is about 418.9455712000.

It can be divided in two parts, 735 and 31396, that added together give a triangular number (32131 = T₂₅₃).

The spelling of 73531396 in words is "seventy-three million, five hundred thirty-one thousand, three hundred ninety-six".