70869497 has 2 divisors, whose sum is σ = 70869498. Its totient is φ = 70869496.

The previous prime is 70869439. The next prime is 70869517. The reversal of 70869497 is 79496807.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45306361 + 25563136 = 6731^2 + 5056^2 .

It is a cyclic number.

It is not a de Polignac number, because 70869497 - 2⁶ = 70869433 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (70869397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35434748 + 35434749.

It is an arithmetic number, because the mean of its divisors is an integer number (35434749).

Almost surely, 2^70869497 is an apocalyptic number.

It is an amenable number.

70869497 is a deficient number, since it is larger than the sum of its proper divisors (1).

70869497 is an equidigital number, since it uses as much as digits as its factorization.

70869497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 762048, while the sum is 50.

The square root of 70869497 is about 8418.4022830939. The cubic root of 70869497 is about 413.8279155205.

The spelling of 70869497 in words is "seventy million, eight hundred sixty-nine thousand, four hundred ninety-seven".