70391801 has 2 divisors, whose sum is σ = 70391802. Its totient is φ = 70391800.

The previous prime is 70391777. The next prime is 70391807. The reversal of 70391801 is 10819307.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 57395776 + 12996025 = 7576^2 + 3605^2 .

It is an emirp because it is prime and its reverse (10819307) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70391801 - 2¹⁰ = 70390777 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (70391807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35195900 + 35195901.

It is an arithmetic number, because the mean of its divisors is an integer number (35195901).

Almost surely, 2^70391801 is an apocalyptic number.

It is an amenable number.

70391801 is a deficient number, since it is larger than the sum of its proper divisors (1).

70391801 is an equidigital number, since it uses as much as digits as its factorization.

70391801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 29.

The square root of 70391801 is about 8389.9821811491. The cubic root of 70391801 is about 412.8960158923.

The spelling of 70391801 in words is "seventy million, three hundred ninety-one thousand, eight hundred one".