701661408 has 48 divisors (see below), whose sum is σ = 2104986240. Its totient is φ = 200474496.

The previous prime is 701661407. The next prime is 701661421. The reversal of 701661408 is 804166107.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (701661403) 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 7 ways as a sum of consecutive naturals, for example, 521398 + ... + 522741.

It is an arithmetic number, because the mean of its divisors is an integer number (43853880).

Almost surely, 2^701661408 is an apocalyptic number.

It is an amenable number.

701661408 is an abundant number, since it is smaller than the sum of its proper divisors (1403324832).

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

701661408 is a wasteful number, since it uses less digits than its factorization.

701661408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1044159 (or 1044151 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 701661408 is about 26488.8921625650. The cubic root of 701661408 is about 888.6059090148.

The spelling of 701661408 in words is "seven hundred one million, six hundred sixty-one thousand, four hundred eight".