675477621 has 36 divisors (see below), whose sum is σ = 1207466208. Its totient is φ = 356290272.

The previous prime is 675477613. The next prime is 675477629. The reversal of 675477621 is 126774576.

It is an interprime number because it is at equal distance from previous prime (675477613) and next prime (675477629).

It is not a de Polignac number, because 675477621 - 2³ = 675477613 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (675477629) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 21075 + ... + 42368.

It is an arithmetic number, because the mean of its divisors is an integer number (33540728).

Almost surely, 2^675477621 is an apocalyptic number.

It is an amenable number.

675477621 is a deficient number, since it is larger than the sum of its proper divisors (531988587).

675477621 is a wasteful number, since it uses less digits than its factorization.

675477621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63482 (or 63466 counting only the distinct ones).

The product of its digits is 493920, while the sum is 45.

The square root of 675477621 is about 25989.9523085365. The cubic root of 675477621 is about 877.4121722797.

The spelling of 675477621 in words is "six hundred seventy-five million, four hundred seventy-seven thousand, six hundred twenty-one".