70870453 has 2 divisors, whose sum is σ = 70870454. Its totient is φ = 70870452.

The previous prime is 70870451. The next prime is 70870483. The reversal of 70870453 is 35407807.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36084049 + 34786404 = 6007^2 + 5898^2 .

It is an emirp because it is prime and its reverse (35407807) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70870453 - 2¹ = 70870451 is a prime.

It is a super-2 number, since 2×70870453² = 10045242216850418, which contains 22 as substring.

Together with 70870451, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70870451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35435226 + 35435227.

It is an arithmetic number, because the mean of its divisors is an integer number (35435227).

Almost surely, 2^70870453 is an apocalyptic number.

It is an amenable number.

70870453 is a deficient number, since it is larger than the sum of its proper divisors (1).

70870453 is an equidigital number, since it uses as much as digits as its factorization.

70870453 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23520, while the sum is 34.

The square root of 70870453 is about 8418.4590632728. The cubic root of 70870453 is about 413.8297763009.

The spelling of 70870453 in words is "seventy million, eight hundred seventy thousand, four hundred fifty-three".