397054249 has 4 divisors (see below), whose sum is σ = 397111680. Its totient is φ = 396996820.

The previous prime is 397054243. The next prime is 397054277. The reversal of 397054249 is 942450793.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 942450793 = 61 ⋅15450013.

It is a cyclic number.

It is not a de Polignac number, because 397054249 - 2³ = 397054241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (397054241) 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, 16657 + ... + 32734.

It is an arithmetic number, because the mean of its divisors is an integer number (99277920).

Almost surely, 2^397054249 is an apocalyptic number.

It is an amenable number.

397054249 is a deficient number, since it is larger than the sum of its proper divisors (57431).

397054249 is an equidigital number, since it uses as much as digits as its factorization.

397054249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57430.

The product of its (nonzero) digits is 272160, while the sum is 43.

The square root of 397054249 is about 19926.2201383002. The cubic root of 397054249 is about 734.9931348951.

The spelling of 397054249 in words is "three hundred ninety-seven million, fifty-four thousand, two hundred forty-nine".