997402 has 16 divisors (see below), whose sum is σ = 1723392. Its totient is φ = 424080.

The previous prime is 997391. The next prime is 997427. The reversal of 997402 is 204799.

997402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2488 + ... + 2860.

It is an arithmetic number, because the mean of its divisors is an integer number (107712).

2⁹⁹⁷⁴⁰² is an apocalyptic number.

997402 is a deficient number, since it is larger than the sum of its proper divisors (725990).

997402 is a wasteful number, since it uses less digits than its factorization.

997402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 573.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 997402 is about 998.7001552018. The cubic root of 997402 is about 99.9133248960.

The spelling of 997402 in words is "nine hundred ninety-seven thousand, four hundred two".