70670780 has 12 divisors (see below), whose sum is σ = 148408680. Its totient is φ = 28268304.

The previous prime is 70670771. The next prime is 70670827. The reversal of 70670780 is 8707607.

It is a self number, because there is not a number n which added to its sum of digits gives 70670780.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1766750 + ... + 1766789.

It is an arithmetic number, because the mean of its divisors is an integer number (12367390).

Almost surely, 2^70670780 is an apocalyptic number.

It is an amenable number.

70670780 is an abundant number, since it is smaller than the sum of its proper divisors (77737900).

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

70670780 is a wasteful number, since it uses less digits than its factorization.

70670780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3533548 (or 3533546 counting only the distinct ones).

The product of its (nonzero) digits is 16464, while the sum is 35.

The square root of 70670780 is about 8406.5914614664. The cubic root of 70670780 is about 413.4407643629.

The spelling of 70670780 in words is "seventy million, six hundred seventy thousand, seven hundred eighty".