397254794 has 4 divisors (see below), whose sum is σ = 595882194. Its totient is φ = 198627396.

The previous prime is 397254791. The next prime is 397254817. The reversal of 397254794 is 497452793.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 497452793 = 17 ⋅29261929.

It can be written as a sum of positive squares in only one way, i.e., 215355625 + 181899169 = 14675^2 + 13487^2 .

It is a super-2 number, since 2×397254794² = 315622742711964872, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (397254791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99313697 + ... + 99313700.

Almost surely, 2^397254794 is an apocalyptic number.

397254794 is a deficient number, since it is larger than the sum of its proper divisors (198627400).

397254794 is a wasteful number, since it uses less digits than its factorization.

397254794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198627399.

The product of its digits is 1905120, while the sum is 50.

The square root of 397254794 is about 19931.2516917528. The cubic root of 397254794 is about 735.1168580298.

The spelling of 397254794 in words is "three hundred ninety-seven million, two hundred fifty-four thousand, seven hundred ninety-four".