20074357 has 2 divisors, whose sum is σ = 20074358. Its totient is φ = 20074356.

The previous prime is 20074349. The next prime is 20074361. The reversal of 20074357 is 75347002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15689521 + 4384836 = 3961^2 + 2094^2 .

It is a cyclic number.

It is not a de Polignac number, because 20074357 - 2³ = 20074349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20074367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10037178 + 10037179.

It is an arithmetic number, because the mean of its divisors is an integer number (10037179).

Almost surely, 2^20074357 is an apocalyptic number.

It is an amenable number.

20074357 is a deficient number, since it is larger than the sum of its proper divisors (1).

20074357 is an equidigital number, since it uses as much as digits as its factorization.

20074357 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5880, while the sum is 28.

The square root of 20074357 is about 4480.4416076990. The cubic root of 20074357 is about 271.7777388831. Note that the first 4 decimals are identical.

The spelling of 20074357 in words is "twenty million, seventy-four thousand, three hundred fifty-seven".