70717951 has 2 divisors, whose sum is σ = 70717952. Its totient is φ = 70717950.

The previous prime is 70717937. The next prime is 70717961. The reversal of 70717951 is 15971707.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 70717951 - 2¹⁵ = 70685183 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 70717951.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70717901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35358975 + 35358976.

It is an arithmetic number, because the mean of its divisors is an integer number (35358976).

Almost surely, 2^70717951 is an apocalyptic number.

70717951 is a deficient number, since it is larger than the sum of its proper divisors (1).

70717951 is an equidigital number, since it uses as much as digits as its factorization.

70717951 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15435, while the sum is 37.

The square root of 70717951 is about 8409.3965895301. The cubic root of 70717951 is about 413.5327310700.

The spelling of 70717951 in words is "seventy million, seven hundred seventeen thousand, nine hundred fifty-one".