27899712 has 42 divisors (see below), whose sum is σ = 79971138. Its totient is φ = 9299712.

The previous prime is 27899701. The next prime is 27899723. The reversal of 27899712 is 21799872.

It is an interprime number because it is at equal distance from previous prime (27899701) and next prime (27899723).

It can be written as a sum of positive squares in only one way, i.e., 22810176 + 5089536 = 4776^2 + 2256^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 23643 + ... + 24794.

Almost surely, 2^27899712 is an apocalyptic number.

It is an amenable number.

27899712 is an abundant number, since it is smaller than the sum of its proper divisors (52071426).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27899712 is a wasteful number, since it uses less digits than its factorization.

27899712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48455 (or 48442 counting only the distinct ones).

The product of its digits is 127008, while the sum is 45.

The square root of 27899712 is about 5282.0177962593. The cubic root of 27899712 is about 303.2959236829.

The spelling of 27899712 in words is "twenty-seven million, eight hundred ninety-nine thousand, seven hundred twelve".