73511990 has 16 divisors (see below), whose sum is σ = 132424848. Its totient is φ = 29381856.

The previous prime is 73511987. The next prime is 73512001. The reversal of 73511990 is 9911537.

It is a self number, because there is not a number n which added to its sum of digits gives 73511990.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17429 + ... + 21231.

It is an arithmetic number, because the mean of its divisors is an integer number (8276553).

Almost surely, 2^73511990 is an apocalyptic number.

73511990 is a deficient number, since it is larger than the sum of its proper divisors (58912858).

73511990 is a wasteful number, since it uses less digits than its factorization.

73511990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5743.

The product of its (nonzero) digits is 8505, while the sum is 35.

The square root of 73511990 is about 8573.9133422259. The cubic root of 73511990 is about 418.9087126900.

The spelling of 73511990 in words is "seventy-three million, five hundred eleven thousand, nine hundred ninety".