164794426 has 4 divisors (see below), whose sum is σ = 247191642. Its totient is φ = 82397212.

The previous prime is 164794397. The next prime is 164794433. The reversal of 164794426 is 624497461.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 624497461 = 7 ⋅89213923.

It can be written as a sum of positive squares in only one way, i.e., 157477401 + 7317025 = 12549^2 + 2705^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41198605 + ... + 41198608.

Almost surely, 2^164794426 is an apocalyptic number.

164794426 is a deficient number, since it is larger than the sum of its proper divisors (82397216).

164794426 is an equidigital number, since it uses as much as digits as its factorization.

164794426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82397215.

The product of its digits is 290304, while the sum is 43.

The square root of 164794426 is about 12837.2281275983. The cubic root of 164794426 is about 548.2527760084.

The spelling of 164794426 in words is "one hundred sixty-four million, seven hundred ninety-four thousand, four hundred twenty-six".