248992457 has 8 divisors (see below), whose sum is σ = 296935296. Its totient is φ = 204142752.

The previous prime is 248992399. The next prime is 248992487. The reversal of 248992457 is 754299842.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 248992457 - 2¹⁰ = 248991433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (248992487) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 773108 + ... + 773429.

It is an arithmetic number, because the mean of its divisors is an integer number (37116912).

Almost surely, 2^248992457 is an apocalyptic number.

It is an amenable number.

248992457 is a deficient number, since it is larger than the sum of its proper divisors (47942839).

248992457 is a wasteful number, since it uses less digits than its factorization.

248992457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1546567.

The product of its digits is 1451520, while the sum is 50.

The square root of 248992457 is about 15779.4948271483. The cubic root of 248992457 is about 629.1131024167.

The spelling of 248992457 in words is "two hundred forty-eight million, nine hundred ninety-two thousand, four hundred fifty-seven".