399496029 has 4 divisors (see below), whose sum is σ = 532661376. Its totient is φ = 266330684.

The previous prime is 399496007. The next prime is 399496037. The reversal of 399496029 is 920694993.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 399496029 - 2⁵ = 399495997 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (399496049) 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, 66582669 + ... + 66582674.

It is an arithmetic number, because the mean of its divisors is an integer number (133165344).

Almost surely, 2^399496029 is an apocalyptic number.

It is an amenable number.

399496029 is a deficient number, since it is larger than the sum of its proper divisors (133165347).

399496029 is a wasteful number, since it uses less digits than its factorization.

399496029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133165346.

The product of its (nonzero) digits is 944784, while the sum is 51.

The square root of 399496029 is about 19987.3967539547. The cubic root of 399496029 is about 736.4967288396.

The spelling of 399496029 in words is "three hundred ninety-nine million, four hundred ninety-six thousand, twenty-nine".