70672279 has 2 divisors, whose sum is σ = 70672280. Its totient is φ = 70672278.

The previous prime is 70672271. The next prime is 70672289. The reversal of 70672279 is 97227607.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 70672279 - 2³ = 70672271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70672271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35336139 + 35336140.

It is an arithmetic number, because the mean of its divisors is an integer number (35336140).

Almost surely, 2^70672279 is an apocalyptic number.

70672279 is a deficient number, since it is larger than the sum of its proper divisors (1).

70672279 is an equidigital number, since it uses as much as digits as its factorization.

70672279 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 74088, while the sum is 40.

The square root of 70672279 is about 8406.6806172234. The cubic root of 70672279 is about 413.4436875103.

The spelling of 70672279 in words is "seventy million, six hundred seventy-two thousand, two hundred seventy-nine".