70408253 has 2 divisors, whose sum is σ = 70408254. Its totient is φ = 70408252.

The previous prime is 70408249. The next prime is 70408277. The reversal of 70408253 is 35280407.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37724164 + 32684089 = 6142^2 + 5717^2 .

It is a cyclic number.

It is not a de Polignac number, because 70408253 - 2² = 70408249 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70408853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35204126 + 35204127.

It is an arithmetic number, because the mean of its divisors is an integer number (35204127).

Almost surely, 2^70408253 is an apocalyptic number.

It is an amenable number.

70408253 is a deficient number, since it is larger than the sum of its proper divisors (1).

70408253 is an equidigital number, since it uses as much as digits as its factorization.

70408253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 70408253 is about 8390.9625788702. The cubic root of 70408253 is about 412.9281807941.

The spelling of 70408253 in words is "seventy million, four hundred eight thousand, two hundred fifty-three".