70497919 has 2 divisors, whose sum is σ = 70497920. Its totient is φ = 70497918.

The previous prime is 70497887. The next prime is 70497943. The reversal of 70497919 is 91979407.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 70497919 - 2⁵ = 70497887 is a prime.

It is a super-2 number, since 2×70497919² = 9939913166661122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70497019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35248959 + 35248960.

It is an arithmetic number, because the mean of its divisors is an integer number (35248960).

Almost surely, 2^70497919 is an apocalyptic number.

70497919 is a deficient number, since it is larger than the sum of its proper divisors (1).

70497919 is an equidigital number, since it uses as much as digits as its factorization.

70497919 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 142884, while the sum is 46.

The square root of 70497919 is about 8396.3038892122. The cubic root of 70497919 is about 413.1033965784.

The spelling of 70497919 in words is "seventy million, four hundred ninety-seven thousand, nine hundred nineteen".