374534621 has 2 divisors, whose sum is σ = 374534622. Its totient is φ = 374534620.

The previous prime is 374534617. The next prime is 374534663. The reversal of 374534621 is 126435473.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 228463225 + 146071396 = 15115^2 + 12086^2 .

It is a cyclic number.

It is not a de Polignac number, because 374534621 - 2² = 374534617 is a prime.

It is a super-2 number, since 2×374534621² = 280552364655227282, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (374531621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 187267310 + 187267311.

It is an arithmetic number, because the mean of its divisors is an integer number (187267311).

Almost surely, 2^374534621 is an apocalyptic number.

It is an amenable number.

374534621 is a deficient number, since it is larger than the sum of its proper divisors (1).

374534621 is an equidigital number, since it uses as much as digits as its factorization.

374534621 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 60480, while the sum is 35.

The square root of 374534621 is about 19352.8969666043. The cubic root of 374534621 is about 720.8263538174.

The spelling of 374534621 in words is "three hundred seventy-four million, five hundred thirty-four thousand, six hundred twenty-one".