397065374 has 8 divisors (see below), whose sum is σ = 597222048. Its totient is φ = 197991360.

The previous prime is 397065371. The next prime is 397065433. The reversal of 397065374 is 473560793.

It is a Cunningham number, because it is equal to 735³-1.

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

It is a super-2 number, since 2×397065374² = 315321822459519752, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397065371) 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, 269747 + ... + 271214.

It is an arithmetic number, because the mean of its divisors is an integer number (74652756).

Almost surely, 2^397065374 is an apocalyptic number.

397065374 is a deficient number, since it is larger than the sum of its proper divisors (200156674).

397065374 is a wasteful number, since it uses less digits than its factorization.

397065374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541330.

The product of its (nonzero) digits is 476280, while the sum is 44.

The square root of 397065374 is about 19926.4992911449. The cubic root of 397065374 is about 734.9999993830. Note that the first 6 decimals are identical.

The spelling of 397065374 in words is "three hundred ninety-seven million, sixty-five thousand, three hundred seventy-four".