70387469 has 2 divisors, whose sum is σ = 70387470. Its totient is φ = 70387468.

The previous prime is 70387441. The next prime is 70387507. The reversal of 70387469 is 96478307.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47472100 + 22915369 = 6890^2 + 4787^2 .

It is a cyclic number.

It is not a de Polignac number, because 70387469 - 2¹² = 70383373 is a prime.

It is a super-2 number, since 2×70387469² = 9908791584451922, which contains 22 as substring.

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 (70387439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35193734 + 35193735.

It is an arithmetic number, because the mean of its divisors is an integer number (35193735).

Almost surely, 2^70387469 is an apocalyptic number.

It is an amenable number.

70387469 is a deficient number, since it is larger than the sum of its proper divisors (1).

70387469 is an equidigital number, since it uses as much as digits as its factorization.

70387469 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 254016, while the sum is 44.

The square root of 70387469 is about 8389.7240121472. The cubic root of 70387469 is about 412.8875456718.

The spelling of 70387469 in words is "seventy million, three hundred eighty-seven thousand, four hundred sixty-nine".