704977920 has 132 divisors (see below), whose sum is σ = 2442889800. Its totient is φ = 187981824.

The previous prime is 704977901. The next prime is 704977921. The reversal of 704977920 is 29779407.

It is a happy number.

704977920 is a `hidden beast` number, since 70 + 497 + 7 + 92 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (704977921) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38431 + ... + 53729.

Almost surely, 2^704977920 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 704977920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1221444900).

704977920 is an abundant number, since it is smaller than the sum of its proper divisors (1737911880).

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

704977920 is a wasteful number, since it uses less digits than its factorization.

704977920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15330 (or 15309 counting only the distinct ones).

The product of its (nonzero) digits is 222264, while the sum is 45.

The square root of 704977920 is about 26551.4203009933. The cubic root of 704977920 is about 890.0037537190.

The spelling of 704977920 in words is "seven hundred four million, nine hundred seventy-seven thousand, nine hundred twenty".