701978670 has 64 divisors (see below), whose sum is σ = 1878762240. Its totient is φ = 186512544.

The previous prime is 701978647. The next prime is 701978687. The reversal of 701978670 is 76879107.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 71817 + ... + 81003.

It is an arithmetic number, because the mean of its divisors is an integer number (29355660).

Almost surely, 2^701978670 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 701978670, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (939381120).

701978670 is an abundant number, since it is smaller than the sum of its proper divisors (1176783570).

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

701978670 is a wasteful number, since it uses less digits than its factorization.

701978670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9486 (or 9480 counting only the distinct ones).

The product of its (nonzero) digits is 148176, while the sum is 45.

The square root of 701978670 is about 26494.8800714402. The cubic root of 701978670 is about 888.7398190007.

The spelling of 701978670 in words is "seven hundred one million, nine hundred seventy-eight thousand, six hundred seventy".