397959654 has 32 divisors (see below), whose sum is σ = 805559040. Its totient is φ = 131054112.

The previous prime is 397959649. The next prime is 397959689. The reversal of 397959654 is 456959793.

It is a junction number, because it is equal to n+sod(n) for n = 397959594 and 397959603.

It is a congruent number.

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, 304767 + ... + 306069.

It is an arithmetic number, because the mean of its divisors is an integer number (25173720).

Almost surely, 2^397959654 is an apocalyptic number.

397959654 is an abundant number, since it is smaller than the sum of its proper divisors (407599386).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

397959654 is a wasteful number, since it uses less digits than its factorization.

397959654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1884.

The product of its digits is 9185400, while the sum is 57.

The square root of 397959654 is about 19948.9261365117. The cubic root of 397959654 is about 735.5513804233.

The spelling of 397959654 in words is "three hundred ninety-seven million, nine hundred fifty-nine thousand, six hundred fifty-four".