73087261 has 12 divisors (see below), whose sum is σ = 82587168. Its totient is φ = 64528464.

The previous prime is 73087249. The next prime is 73087271. The reversal of 73087261 is 16278037.

It is not a de Polignac number, because 73087261 - 2²³ = 64698653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73087271) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5515 + ... + 13288.

It is an arithmetic number, because the mean of its divisors is an integer number (6882264).

Almost surely, 2^73087261 is an apocalyptic number.

It is an amenable number.

73087261 is a deficient number, since it is larger than the sum of its proper divisors (9499907).

73087261 is a wasteful number, since it uses less digits than its factorization.

73087261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18852 (or 18839 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 73087261 is about 8549.1087839611. The cubic root of 73087261 is about 418.1003799583.

The spelling of 73087261 in words is "seventy-three million, eighty-seven thousand, two hundred sixty-one".