70374989 has 2 divisors, whose sum is σ = 70374990. Its totient is φ = 70374988.

The previous prime is 70374979. The next prime is 70375003. The reversal of 70374989 is 98947307.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66552964 + 3822025 = 8158^2 + 1955^2 .

It is a cyclic number.

It is not a de Polignac number, because 70374989 - 2¹⁶ = 70309453 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70374919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35187494 + 35187495.

It is an arithmetic number, because the mean of its divisors is an integer number (35187495).

Almost surely, 2^70374989 is an apocalyptic number.

It is an amenable number.

70374989 is a deficient number, since it is larger than the sum of its proper divisors (1).

70374989 is an equidigital number, since it uses as much as digits as its factorization.

70374989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 381024, while the sum is 47.

The square root of 70374989 is about 8388.9802121593. The cubic root of 70374989 is about 412.8631419855.

The spelling of 70374989 in words is "seventy million, three hundred seventy-four thousand, nine hundred eighty-nine".