399179001 has 8 divisors (see below), whose sum is σ = 573180160. Its totient is φ = 245648592.

The previous prime is 399178981. The next prime is 399179003. The reversal of 399179001 is 100971993.

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

It is not a de Polignac number, because 399179001 - 2²¹ = 397081849 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 10235359 = 399179001 / (3 + 9 + 9 + 1 + 7 + 9 + 0 + 0 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (399179003) 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, 5117641 + ... + 5117718.

It is an arithmetic number, because the mean of its divisors is an integer number (71647520).

Almost surely, 2^399179001 is an apocalyptic number.

It is an amenable number.

399179001 is a deficient number, since it is larger than the sum of its proper divisors (174001159).

399179001 is a wasteful number, since it uses less digits than its factorization.

399179001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10235375.

The product of its (nonzero) digits is 15309, while the sum is 39.

The square root of 399179001 is about 19979.4644823128. The cubic root of 399179001 is about 736.3018567518.

The spelling of 399179001 in words is "three hundred ninety-nine million, one hundred seventy-nine thousand, one".