70916515 has 4 divisors (see below), whose sum is σ = 85099824. Its totient is φ = 56733208.

The previous prime is 70916509. The next prime is 70916533. The reversal of 70916515 is 51561907.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 70916515 - 2¹⁷ = 70785443 is a prime.

It is a Duffinian 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, 7091647 + ... + 7091656.

It is an arithmetic number, because the mean of its divisors is an integer number (21274956).

Almost surely, 2^70916515 is an apocalyptic number.

70916515 is a deficient number, since it is larger than the sum of its proper divisors (14183309).

70916515 is a wasteful number, since it uses less digits than its factorization.

70916515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14183308.

The product of its (nonzero) digits is 9450, while the sum is 34.

The square root of 70916515 is about 8421.1943927213. The cubic root of 70916515 is about 413.9194126167.

The spelling of 70916515 in words is "seventy million, nine hundred sixteen thousand, five hundred fifteen".