356697994 has 4 divisors (see below), whose sum is σ = 535046994. Its totient is φ = 178348996.

The previous prime is 356697989. The next prime is 356698021. The reversal of 356697994 is 499796653.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 499796653 = 19 ⋅26305087.

It can be written as a sum of positive squares in only one way, i.e., 351000225 + 5697769 = 18735^2 + 2387^2 .

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 89174497 + ... + 89174500.

Almost surely, 2^356697994 is an apocalyptic number.

356697994 is a deficient number, since it is larger than the sum of its proper divisors (178349000).

356697994 is a wasteful number, since it uses less digits than its factorization.

356697994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178348999.

The product of its digits is 11022480, while the sum is 58.

The square root of 356697994 is about 18886.4500105234. The cubic root of 356697994 is about 709.1969986577.

The spelling of 356697994 in words is "three hundred fifty-six million, six hundred ninety-seven thousand, nine hundred ninety-four".