397850455 has 8 divisors (see below), whose sum is σ = 490324032. Its totient is φ = 309678048.

The previous prime is 397850419. The next prime is 397850471. The reversal of 397850455 is 554058793.

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

It is a cyclic number.

It is not a de Polignac number, because 397850455 - 2⁹ = 397849943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1075087 + ... + 1075456.

It is an arithmetic number, because the mean of its divisors is an integer number (61290504).

Almost surely, 2^397850455 is an apocalyptic number.

397850455 is a deficient number, since it is larger than the sum of its proper divisors (92473577).

397850455 is a wasteful number, since it uses less digits than its factorization.

397850455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2150585.

The product of its (nonzero) digits is 756000, while the sum is 46.

The square root of 397850455 is about 19946.1889843649. The cubic root of 397850455 is about 735.4840965314.

The spelling of 397850455 in words is "three hundred ninety-seven million, eight hundred fifty thousand, four hundred fifty-five".