997058251 has 8 divisors (see below), whose sum is σ = 1178788320. Its totient is φ = 825151488.

The previous prime is 997058219. The next prime is 997058261. The reversal of 997058251 is 152850799.

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

It is not a de Polignac number, because 997058251 - 2⁵ = 997058219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (997058201) 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, 2455606 + ... + 2456011.

It is an arithmetic number, because the mean of its divisors is an integer number (147348540).

Almost surely, 2^997058251 is an apocalyptic number.

997058251 is a deficient number, since it is larger than the sum of its proper divisors (181730069).

997058251 is a wasteful number, since it uses less digits than its factorization.

997058251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4911653.

The product of its (nonzero) digits is 226800, while the sum is 46.

The square root of 997058251 is about 31576.2292080609. The cubic root of 997058251 is about 999.0184538824.

The spelling of 997058251 in words is "nine hundred ninety-seven million, fifty-eight thousand, two hundred fifty-one".