70706651 has 2 divisors, whose sum is σ = 70706652. Its totient is φ = 70706650.

The previous prime is 70706639. The next prime is 70706681. The reversal of 70706651 is 15660707.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 70706651 - 2¹⁰ = 70705627 is a prime.

It is a Chen prime.

It is equal to p_4157177 and since 70706651 and 4157177 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (70706681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35353325 + 35353326.

It is an arithmetic number, because the mean of its divisors is an integer number (35353326).

Almost surely, 2^70706651 is an apocalyptic number.

70706651 is a deficient number, since it is larger than the sum of its proper divisors (1).

70706651 is an equidigital number, since it uses as much as digits as its factorization.

70706651 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8820, while the sum is 32.

The square root of 70706651 is about 8408.7246952198. The cubic root of 70706651 is about 413.5107038067.

The spelling of 70706651 in words is "seventy million, seven hundred six thousand, six hundred fifty-one".