70881416 has 8 divisors (see below), whose sum is σ = 132902670. Its totient is φ = 35440704.

The previous prime is 70881413. The next prime is 70881443. The reversal of 70881416 is 61418807.

It can be written as a sum of positive squares in only one way, i.e., 52852900 + 18028516 = 7270^2 + 4246^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (70881413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4430081 + ... + 4430096.

Almost surely, 2^70881416 is an apocalyptic number.

It is an amenable number.

70881416 is a deficient number, since it is larger than the sum of its proper divisors (62021254).

70881416 is a wasteful number, since it uses less digits than its factorization.

70881416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8860183 (or 8860179 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 35.

The square root of 70881416 is about 8419.1101667575. The cubic root of 70881416 is about 413.8511137400.

The spelling of 70881416 in words is "seventy million, eight hundred eighty-one thousand, four hundred sixteen".