613921632 has 48 divisors (see below), whose sum is σ = 1627525872. Its totient is φ = 202611200.

The previous prime is 613921601. The next prime is 613921639. The reversal of 613921632 is 236129316.

It is a tau number, because it is divible by the number of its divisors (48).

It is a junction number, because it is equal to n+sod(n) for n = 613921593 and 613921602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (613921639) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21963 + ... + 41354.

It is an arithmetic number, because the mean of its divisors is an integer number (33906789).

Almost surely, 2^613921632 is an apocalyptic number.

It is an amenable number.

613921632 is an abundant number, since it is smaller than the sum of its proper divisors (1013604240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

613921632 is a wasteful number, since it uses less digits than its factorization.

613921632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63431 (or 63423 counting only the distinct ones).

The product of its digits is 11664, while the sum is 33.

The square root of 613921632 is about 24777.4419987213. The cubic root of 613921632 is about 849.9061635743.

The spelling of 613921632 in words is "six hundred thirteen million, nine hundred twenty-one thousand, six hundred thirty-two".