997447594 has 32 divisors (see below), whose sum is σ = 1763887104. Its totient is φ = 417046080.

The previous prime is 997447553. The next prime is 997447609. The reversal of 997447594 is 495744799.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77847 + ... + 89749.

It is an arithmetic number, because the mean of its divisors is an integer number (55121472).

Almost surely, 2^997447594 is an apocalyptic number.

997447594 is a deficient number, since it is larger than the sum of its proper divisors (766439510).

997447594 is a wasteful number, since it uses less digits than its factorization.

997447594 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12222.

The product of its digits is 11430720, while the sum is 58.

The square root of 997447594 is about 31582.3937344844. The cubic root of 997447594 is about 999.1484731078.

The spelling of 997447594 in words is "nine hundred ninety-seven million, four hundred forty-seven thousand, five hundred ninety-four".