373421569 has 2 divisors, whose sum is σ = 373421570. Its totient is φ = 373421568.

The previous prime is 373421557. The next prime is 373421591. The reversal of 373421569 is 965124373.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 223113969 + 150307600 = 14937^2 + 12260^2 .

It is a cyclic number.

It is not a de Polignac number, because 373421569 - 2⁷ = 373421441 is a prime.

It is a super-2 number, since 2×373421569² = 278887336388843522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (373421509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 186710784 + 186710785.

It is an arithmetic number, because the mean of its divisors is an integer number (186710785).

Almost surely, 2^373421569 is an apocalyptic number.

It is an amenable number.

373421569 is a deficient number, since it is larger than the sum of its proper divisors (1).

373421569 is an equidigital number, since it uses as much as digits as its factorization.

373421569 is an evil number, because the sum of its binary digits is even.

The product of its digits is 136080, while the sum is 40.

The square root of 373421569 is about 19324.1188414893. The cubic root of 373421569 is about 720.1115882860. Note that the first 3 decimals are identical.

The spelling of 373421569 in words is "three hundred seventy-three million, four hundred twenty-one thousand, five hundred sixty-nine".