70316819 has 4 divisors (see below), whose sum is σ = 73374096. Its totient is φ = 67259544.

The previous prime is 70316809. The next prime is 70316839. The reversal of 70316819 is 91861307.

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

It is not a de Polignac number, because 70316819 - 2⁸ = 70316563 is a prime.

It is a super-2 number, since 2×70316819² = 9888910068557522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70316809) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1528604 + ... + 1528649.

It is an arithmetic number, because the mean of its divisors is an integer number (18343524).

Almost surely, 2^70316819 is an apocalyptic number.

70316819 is a deficient number, since it is larger than the sum of its proper divisors (3057277).

70316819 is a wasteful number, since it uses less digits than its factorization.

70316819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3057276.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 70316819 is about 8385.5124470720. The cubic root of 70316819 is about 412.7493569159.

The spelling of 70316819 in words is "seventy million, three hundred sixteen thousand, eight hundred nineteen".