397932099 has 8 divisors (see below), whose sum is σ = 535271952. Its totient is φ = 262940160.

The previous prime is 397932091. The next prime is 397932103. The reversal of 397932099 is 990239793.

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

It is not a de Polignac number, because 397932099 - 2³ = 397932091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (397932091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 586582 + ... + 587259.

It is an arithmetic number, because the mean of its divisors is an integer number (66908994).

Almost surely, 2^397932099 is an apocalyptic number.

397932099 is a deficient number, since it is larger than the sum of its proper divisors (137339853).

397932099 is a wasteful number, since it uses less digits than its factorization.

397932099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1173957.

The product of its (nonzero) digits is 826686, while the sum is 51.

The square root of 397932099 is about 19948.2354858769. The cubic root of 397932099 is about 735.5344033370.

The spelling of 397932099 in words is "three hundred ninety-seven million, nine hundred thirty-two thousand, ninety-nine".