356399979 has 16 divisors (see below), whose sum is σ = 513714432. Its totient is φ = 218482848.

The previous prime is 356399969. The next prime is 356399999. The reversal of 356399979 is 979993653.

It is not a de Polignac number, because 356399979 - 2²³ = 348011371 is a prime.

It is not an unprimeable number, because it can be changed into a prime (356399909) 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, 7117 + ... + 27630.

It is an arithmetic number, because the mean of its divisors is an integer number (32107152).

Almost surely, 2^356399979 is an apocalyptic number.

356399979 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

356399979 is a deficient number, since it is larger than the sum of its proper divisors (157314453).

356399979 is a wasteful number, since it uses less digits than its factorization.

356399979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35026.

The product of its digits is 12400290, while the sum is 60.

The square root of 356399979 is about 18878.5587108762. The cubic root of 356399979 is about 708.9994363551. Note that the first 3 decimals are identical.

The spelling of 356399979 in words is "three hundred fifty-six million, three hundred ninety-nine thousand, nine hundred seventy-nine".