70672319 has 4 divisors (see below), whose sum is σ = 71466480. Its totient is φ = 69878160.

The previous prime is 70672289. The next prime is 70672351. The reversal of 70672319 is 91327607.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70672319 is a prime.

It is a super-2 number, since 2×70672319² = 9989153345675522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70672369) 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, 396947 + ... + 397124.

It is an arithmetic number, because the mean of its divisors is an integer number (17866620).

Almost surely, 2^70672319 is an apocalyptic number.

70672319 is a deficient number, since it is larger than the sum of its proper divisors (794161).

70672319 is an equidigital number, since it uses as much as digits as its factorization.

70672319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 794160.

The product of its (nonzero) digits is 15876, while the sum is 35.

The square root of 70672319 is about 8406.6829962834. The cubic root of 70672319 is about 413.4437655124.

The spelling of 70672319 in words is "seventy million, six hundred seventy-two thousand, three hundred nineteen".