627450121 has 4 divisors (see below), whose sum is σ = 627844612. Its totient is φ = 627055632.

The previous prime is 627450113. The next prime is 627450139. The reversal of 627450121 is 121054726.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 109432521 + 518017600 = 10461^2 + 22760^2 .

It is a cyclic number.

It is not a de Polignac number, because 627450121 - 2³ = 627450113 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 627450121.

It is not an unprimeable number, because it can be changed into a prime (627450221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 194850 + ... + 198043.

It is an arithmetic number, because the mean of its divisors is an integer number (156961153).

Almost surely, 2^627450121 is an apocalyptic number.

It is an amenable number.

627450121 is a deficient number, since it is larger than the sum of its proper divisors (394491).

627450121 is a wasteful number, since it uses less digits than its factorization.

627450121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394490.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 627450121 is about 25048.9544891598. The cubic root of 627450121 is about 856.1037560384.

The spelling of 627450121 in words is "six hundred twenty-seven million, four hundred fifty thousand, one hundred twenty-one".