997452697 has 8 divisors (see below), whose sum is σ = 1031200832. Its totient is φ = 964062000.

The previous prime is 997452607. The next prime is 997452727. The reversal of 997452697 is 796254799.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-997452697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (997452607) 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, 83679 + ... + 94852.

It is an arithmetic number, because the mean of its divisors is an integer number (128900104).

Almost surely, 2^997452697 is an apocalyptic number.

It is an amenable number.

997452697 is a deficient number, since it is larger than the sum of its proper divisors (33748135).

997452697 is a wasteful number, since it uses less digits than its factorization.

997452697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178719.

The product of its digits is 8573040, while the sum is 58.

The square root of 997452697 is about 31582.4745230642. The cubic root of 997452697 is about 999.1501770055.

The spelling of 997452697 in words is "nine hundred ninety-seven million, four hundred fifty-two thousand, six hundred ninety-seven".