70627913 has 2 divisors, whose sum is σ = 70627914. Its totient is φ = 70627912.

The previous prime is 70627903. The next prime is 70627919. The reversal of 70627913 is 31972607.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35617024 + 35010889 = 5968^2 + 5917^2 .

It is a cyclic number.

It is not a de Polignac number, because 70627913 - 2⁸ = 70627657 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (70627919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35313956 + 35313957.

It is an arithmetic number, because the mean of its divisors is an integer number (35313957).

Almost surely, 2^70627913 is an apocalyptic number.

It is an amenable number.

70627913 is a deficient number, since it is larger than the sum of its proper divisors (1).

70627913 is an equidigital number, since it uses as much as digits as its factorization.

70627913 is an evil number, because the sum of its binary digits is even.

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

The square root of 70627913 is about 8404.0414682461. The cubic root of 70627913 is about 413.3571534284.

The spelling of 70627913 in words is "seventy million, six hundred twenty-seven thousand, nine hundred thirteen".