70383457 has 2 divisors, whose sum is σ = 70383458. Its totient is φ = 70383456.

The previous prime is 70383449. The next prime is 70383463. The reversal of 70383457 is 75438307.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 59120721 + 11262736 = 7689^2 + 3356^2 .

It is a cyclic number.

It is not a de Polignac number, because 70383457 - 2³ = 70383449 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (70383497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35191728 + 35191729.

It is an arithmetic number, because the mean of its divisors is an integer number (35191729).

Almost surely, 2^70383457 is an apocalyptic number.

It is an amenable number.

70383457 is a deficient number, since it is larger than the sum of its proper divisors (1).

70383457 is an equidigital number, since it uses as much as digits as its factorization.

70383457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 70560, while the sum is 37.

The square root of 70383457 is about 8389.4849067151. The cubic root of 70383457 is about 412.8797008270.

It can be divided in two parts, 703834 and 57, that added together give a triangular number (703891 = T₁₁₈₆).

The spelling of 70383457 in words is "seventy million, three hundred eighty-three thousand, four hundred fifty-seven".