70945770 has 32 divisors (see below), whose sum is σ = 194594688. Its totient is φ = 16216128.

The previous prime is 70945769. The next prime is 70945783. The reversal of 70945770 is 7754907.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 168709 + ... + 169128.

It is an arithmetic number, because the mean of its divisors is an integer number (6081084).

Almost surely, 2^70945770 is an apocalyptic number.

70945770 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

70945770 is an abundant number, since it is smaller than the sum of its proper divisors (123648918).

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

70945770 is a wasteful number, since it uses less digits than its factorization.

70945770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337854.

The product of its (nonzero) digits is 61740, while the sum is 39.

The square root of 70945770 is about 8422.9312000040. The cubic root of 70945770 is about 413.9763224807.

The spelling of 70945770 in words is "seventy million, nine hundred forty-five thousand, seven hundred seventy".