397948494 has 8 divisors (see below), whose sum is σ = 795897000. Its totient is φ = 132649496.

The previous prime is 397948493. The next prime is 397948541. The reversal of 397948494 is 494849793.

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

397948494 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397948493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33162369 + ... + 33162380.

It is an arithmetic number, because the mean of its divisors is an integer number (99487125).

Almost surely, 2^397948494 is an apocalyptic number.

397948494 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

397948494 is a wasteful number, since it uses less digits than its factorization.

397948494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66324754.

The product of its digits is 7838208, while the sum is 57.

The square root of 397948494 is about 19948.6464202462. The cubic root of 397948494 is about 735.5445046591.

The spelling of 397948494 in words is "three hundred ninety-seven million, nine hundred forty-eight thousand, four hundred ninety-four".