673621532 has 24 divisors (see below), whose sum is σ = 1250847360. Its totient is φ = 316321280.

The previous prime is 673621523. The next prime is 673621547. The reversal of 673621532 is 235126376.

It is a junction number, because it is equal to n+sod(n) for n = 673621492 and 673621501.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22232 + ... + 42912.

It is an arithmetic number, because the mean of its divisors is an integer number (52118640).

Almost surely, 2^673621532 is an apocalyptic number.

It is an amenable number.

673621532 is a deficient number, since it is larger than the sum of its proper divisors (577225828).

673621532 is a wasteful number, since it uses less digits than its factorization.

673621532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21181 (or 21179 counting only the distinct ones).

The product of its digits is 45360, while the sum is 35.

The square root of 673621532 is about 25954.2199266324. The cubic root of 673621532 is about 876.6077789787.

The spelling of 673621532 in words is "six hundred seventy-three million, six hundred twenty-one thousand, five hundred thirty-two".