245928997 has 4 divisors (see below), whose sum is σ = 251648320. Its totient is φ = 240209676.

The previous prime is 245928923. The next prime is 245929067. The reversal of 245928997 is 799829542.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-245928997 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 (245928197) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2859597 + ... + 2859682.

It is an arithmetic number, because the mean of its divisors is an integer number (62912080).

Almost surely, 2^245928997 is an apocalyptic number.

It is an amenable number.

245928997 is a deficient number, since it is larger than the sum of its proper divisors (5719323).

245928997 is an equidigital number, since it uses as much as digits as its factorization.

245928997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5719322.

The product of its digits is 3265920, while the sum is 55.

The square root of 245928997 is about 15682.1234850386. The cubic root of 245928997 is about 626.5223662707.

The spelling of 245928997 in words is "two hundred forty-five million, nine hundred twenty-eight thousand, nine hundred ninety-seven".