373885289 has 2 divisors, whose sum is σ = 373885290. Its totient is φ = 373885288.

The previous prime is 373885277. The next prime is 373885307. The reversal of 373885289 is 982588373.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 224850025 + 149035264 = 14995^2 + 12208^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-373885289 is a prime.

It is a super-2 number, since 2×373885289² = 279580418661227042, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 373885289.

It is not a weakly prime, because it can be changed into another prime (373885489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 186942644 + 186942645.

It is an arithmetic number, because the mean of its divisors is an integer number (186942645).

Almost surely, 2^373885289 is an apocalyptic number.

It is an amenable number.

373885289 is a deficient number, since it is larger than the sum of its proper divisors (1).

373885289 is an equidigital number, since it uses as much as digits as its factorization.

373885289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2903040, while the sum is 53.

The square root of 373885289 is about 19336.1135960668. The cubic root of 373885289 is about 720.4095464495.

The spelling of 373885289 in words is "three hundred seventy-three million, eight hundred eighty-five thousand, two hundred eighty-nine".