70513623 has 12 divisors (see below), whose sum is σ = 105139008. Its totient is φ = 45492480.

The previous prime is 70513609. The next prime is 70513627. The reversal of 70513623 is 32631507.

It is a happy number.

It is not a de Polignac number, because 70513623 - 2⁶ = 70513559 is a prime.

It is a super-2 number, since 2×70513623² = 9944342057172258, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70513627) 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 in 11 ways as a sum of consecutive naturals, for example, 126090 + ... + 126647.

It is an arithmetic number, because the mean of its divisors is an integer number (8761584).

Almost surely, 2^70513623 is an apocalyptic number.

70513623 is a deficient number, since it is larger than the sum of its proper divisors (34625385).

70513623 is a wasteful number, since it uses less digits than its factorization.

70513623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252774 (or 252771 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 27.

The square root of 70513623 is about 8397.2390105320. The cubic root of 70513623 is about 413.1340683778.

The spelling of 70513623 in words is "seventy million, five hundred thirteen thousand, six hundred twenty-three".