70436505 has 16 divisors (see below), whose sum is σ = 116585280. Its totient is φ = 36270528.

The previous prime is 70436461. The next prime is 70436521. The reversal of 70436505 is 50563407.

It is not a de Polignac number, because 70436505 - 2⁶ = 70436441 is a prime.

It is a super-2 number, since 2×70436505² = 9922602473230050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80527 + ... + 81396.

It is an arithmetic number, because the mean of its divisors is an integer number (7286580).

Almost surely, 2^70436505 is an apocalyptic number.

It is an amenable number.

70436505 is a deficient number, since it is larger than the sum of its proper divisors (46148775).

70436505 is a wasteful number, since it uses less digits than its factorization.

70436505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161960.

The product of its (nonzero) digits is 12600, while the sum is 30.

The square root of 70436505 is about 8392.6458879188. The cubic root of 70436505 is about 412.9834038986.

The spelling of 70436505 in words is "seventy million, four hundred thirty-six thousand, five hundred five".