70291493 has 2 divisors, whose sum is σ = 70291494. Its totient is φ = 70291492.

The previous prime is 70291483. The next prime is 70291499. The reversal of 70291493 is 39419207.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 69923044 + 368449 = 8362^2 + 607^2 .

It is a cyclic number.

It is not a de Polignac number, because 70291493 - 2⁸ = 70291237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70291499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35145746 + 35145747.

It is an arithmetic number, because the mean of its divisors is an integer number (35145747).

Almost surely, 2^70291493 is an apocalyptic number.

It is an amenable number.

70291493 is a deficient number, since it is larger than the sum of its proper divisors (1).

70291493 is an equidigital number, since it uses as much as digits as its factorization.

70291493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 70291493 is about 8384.0022065837. The cubic root of 70291493 is about 412.6997976705.

The spelling of 70291493 in words is "seventy million, two hundred ninety-one thousand, four hundred ninety-three".