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397437027 = 31310190693
BaseRepresentation
bin10111101100000…
…110100001100011
31000200211220002220
4113230012201203
51303220441102
6103234242123
712564105351
oct2754064143
91020756086
10397437027
11194385359
12b1126343
1364454b50
143aad87d1
1524d591bc
hex17b06863

397437027 has 8 divisors (see below), whose sum is σ = 570678864. Its totient is φ = 244576608.

The previous prime is 397436989. The next prime is 397437031. The reversal of 397437027 is 720734793.

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

It is not a de Polignac number, because 397437027 - 211 = 397434979 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 397437027.

It is not an unprimeable number, because it can be changed into a prime (397437037) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5095308 + ... + 5095385.

It is an arithmetic number, because the mean of its divisors is an integer number (71334858).

Almost surely, 2397437027 is an apocalyptic number.

397437027 is a deficient number, since it is larger than the sum of its proper divisors (173241837).

397437027 is a wasteful number, since it uses less digits than its factorization.

397437027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10190709.

The product of its (nonzero) digits is 222264, while the sum is 42.

The square root of 397437027 is about 19935.8227068762. The cubic root of 397437027 is about 735.2292477549.

The spelling of 397437027 in words is "three hundred ninety-seven million, four hundred thirty-seven thousand, twenty-seven".

Divisors: 1 3 13 39 10190693 30572079 132479009 397437027