164043794 has 4 divisors (see below), whose sum is σ = 246065694. Its totient is φ = 82021896.

The previous prime is 164043793. The next prime is 164043809. The reversal of 164043794 is 497340461.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 126675025 + 37368769 = 11255^2 + 6113^2 .

It is not an unprimeable number, because it can be changed into a prime (164043793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41010947 + ... + 41010950.

Almost surely, 2^164043794 is an apocalyptic number.

164043794 is a deficient number, since it is larger than the sum of its proper divisors (82021900).

164043794 is an equidigital number, since it uses as much as digits as its factorization.

164043794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82021899.

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 164043794 is about 12807.9582291636. The cubic root of 164043794 is about 547.4190857815.

The spelling of 164043794 in words is "one hundred sixty-four million, forty-three thousand, seven hundred ninety-four".