70294621 has 2 divisors, whose sum is σ = 70294622. Its totient is φ = 70294620.

The previous prime is 70294619. The next prime is 70294633. The reversal of 70294621 is 12649207.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54967396 + 15327225 = 7414^2 + 3915^2 .

It is a cyclic number.

It is not a de Polignac number, because 70294621 - 2¹ = 70294619 is a prime.

Together with 70294619, 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 (70294681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35147310 + 35147311.

It is an arithmetic number, because the mean of its divisors is an integer number (35147311).

Almost surely, 2^70294621 is an apocalyptic number.

It is an amenable number.

70294621 is a deficient number, since it is larger than the sum of its proper divisors (1).

70294621 is an equidigital number, since it uses as much as digits as its factorization.

70294621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 70294621 is about 8384.1887502608. The cubic root of 70294621 is about 412.7059193493.

The spelling of 70294621 in words is "seventy million, two hundred ninety-four thousand, six hundred twenty-one".