397861095 has 16 divisors (see below), whose sum is σ = 636825600. Its totient is φ = 212109984.

The previous prime is 397861091. The next prime is 397861103. The reversal of 397861095 is 590168793.

It is not a de Polignac number, because 397861095 - 2² = 397861091 is a prime.

It is a super-3 number, since 3×397861095³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397861091) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69222 + ... + 74748.

It is an arithmetic number, because the mean of its divisors is an integer number (39801600).

Almost surely, 2^397861095 is an apocalyptic number.

397861095 is a deficient number, since it is larger than the sum of its proper divisors (238964505).

397861095 is a wasteful number, since it uses less digits than its factorization.

397861095 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10334.

The product of its (nonzero) digits is 408240, while the sum is 48.

The square root of 397861095 is about 19946.4557001990. The cubic root of 397861095 is about 735.4906529991.

The spelling of 397861095 in words is "three hundred ninety-seven million, eight hundred sixty-one thousand, ninety-five".