91705252 has 12 divisors (see below), whose sum is σ = 160558300. Its totient is φ = 45831456.

The previous prime is 91705241. The next prime is 91705261. The reversal of 91705252 is 25250719.

It can be written as a sum of positive squares in 2 ways, for example, as 77158656 + 14546596 = 8784^2 + 3814^2 .

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, 8374 + ... + 15922.

Almost surely, 2^91705252 is an apocalyptic number.

It is an amenable number.

91705252 is a deficient number, since it is larger than the sum of its proper divisors (68853048).

91705252 is a wasteful number, since it uses less digits than its factorization.

91705252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10590 (or 10588 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 31.

The square root of 91705252 is about 9576.2859188727. The cubic root of 91705252 is about 450.9531271191.

The spelling of 91705252 in words is "ninety-one million, seven hundred five thousand, two hundred fifty-two".