70961970 has 16 divisors (see below), whose sum is σ = 170308800. Its totient is φ = 18923184.

The previous prime is 70961951. The next prime is 70961977. The reversal of 70961970 is 7916907.

It is not an unprimeable number, because it can be changed into a prime (70961977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1182670 + ... + 1182729.

It is an arithmetic number, because the mean of its divisors is an integer number (10644300).

Almost surely, 2^70961970 is an apocalyptic number.

70961970 is an abundant number, since it is smaller than the sum of its proper divisors (99346830).

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

70961970 is a wasteful number, since it uses less digits than its factorization.

70961970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2365409.

The product of its (nonzero) digits is 23814, while the sum is 39.

The square root of 70961970 is about 8423.8928055858. The cubic root of 70961970 is about 414.0078296729.

The spelling of 70961970 in words is "seventy million, nine hundred sixty-one thousand, nine hundred seventy".