70906519 has 2 divisors, whose sum is σ = 70906520. Its totient is φ = 70906518.

The previous prime is 70906477. The next prime is 70906543. The reversal of 70906519 is 91560907.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 70906519 - 2⁷ = 70906391 is a prime.

It is a super-2 number, since 2×70906519² = 10055468873394722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70906559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35453259 + 35453260.

It is an arithmetic number, because the mean of its divisors is an integer number (35453260).

Almost surely, 2^70906519 is an apocalyptic number.

70906519 is a deficient number, since it is larger than the sum of its proper divisors (1).

70906519 is an equidigital number, since it uses as much as digits as its factorization.

70906519 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17010, while the sum is 37.

The square root of 70906519 is about 8420.6008692967. The cubic root of 70906519 is about 413.8999637720.

The spelling of 70906519 in words is "seventy million, nine hundred six thousand, five hundred nineteen".