73506915 has 48 divisors (see below), whose sum is σ = 135252000. Its totient is φ = 36827136.

The previous prime is 73506899. The next prime is 73506931. The reversal of 73506915 is 51960537.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (73506899) and next prime (73506931).

It is not a de Polignac number, because 73506915 - 2⁴ = 73506899 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 73506915.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 127107 + ... + 127683.

It is an arithmetic number, because the mean of its divisors is an integer number (2817750).

Almost surely, 2^73506915 is an apocalyptic number.

73506915 is a deficient number, since it is larger than the sum of its proper divisors (61745085).

73506915 is a wasteful number, since it uses less digits than its factorization.

73506915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 756 (or 753 counting only the distinct ones).

The product of its (nonzero) digits is 28350, while the sum is 36.

The square root of 73506915 is about 8573.6173812458. The cubic root of 73506915 is about 418.8990724910.

The spelling of 73506915 in words is "seventy-three million, five hundred six thousand, nine hundred fifteen".