70513726 has 4 divisors (see below), whose sum is σ = 105770592. Its totient is φ = 35256862.

The previous prime is 70513669. The next prime is 70513759. The reversal of 70513726 is 62731507.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 62731507 = 31 ⋅2023597.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17628430 + ... + 17628433.

It is an arithmetic number, because the mean of its divisors is an integer number (26442648).

Almost surely, 2^70513726 is an apocalyptic number.

70513726 is a deficient number, since it is larger than the sum of its proper divisors (35256866).

70513726 is a wasteful number, since it uses less digits than its factorization.

70513726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35256865.

The product of its (nonzero) digits is 8820, while the sum is 31.

The square root of 70513726 is about 8397.2451434980. The cubic root of 70513726 is about 413.1342695341.

The spelling of 70513726 in words is "seventy million, five hundred thirteen thousand, seven hundred twenty-six".