70742443 has 4 divisors (see below), whose sum is σ = 71211088. Its totient is φ = 70273800.

The previous prime is 70742437. The next prime is 70742447. The reversal of 70742443 is 34424707.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 70742443 - 2¹⁷ = 70611371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70742447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 234096 + ... + 234397.

It is an arithmetic number, because the mean of its divisors is an integer number (17802772).

Almost surely, 2^70742443 is an apocalyptic number.

70742443 is a deficient number, since it is larger than the sum of its proper divisors (468645).

70742443 is a wasteful number, since it uses less digits than its factorization.

70742443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468644.

The product of its (nonzero) digits is 18816, while the sum is 31.

The square root of 70742443 is about 8410.8526916122. The cubic root of 70742443 is about 413.5804656479.

The spelling of 70742443 in words is "seventy million, seven hundred forty-two thousand, four hundred forty-three".