70672271 has 2 divisors, whose sum is σ = 70672272. Its totient is φ = 70672270.

The previous prime is 70672211. The next prime is 70672279. The reversal of 70672271 is 17227607.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 70672271 - 2⁶ = 70672207 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70672279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35336135 + 35336136.

It is an arithmetic number, because the mean of its divisors is an integer number (35336136).

Almost surely, 2^70672271 is an apocalyptic number.

70672271 is a deficient number, since it is larger than the sum of its proper divisors (1).

70672271 is an equidigital number, since it uses as much as digits as its factorization.

70672271 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8232, while the sum is 32.

The square root of 70672271 is about 8406.6801414114. The cubic root of 70672271 is about 413.4436719099.

Adding to 70672271 its reverse (17227607), we get a palindrome (87899878).

The spelling of 70672271 in words is "seventy million, six hundred seventy-two thousand, two hundred seventy-one".