70744493 has 4 divisors (see below), whose sum is σ = 70827900. Its totient is φ = 70661088.

The previous prime is 70744489. The next prime is 70744507. The reversal of 70744493 is 39444707.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 63329764 + 7414729 = 7958^2 + 2723^2 .

It is a cyclic number.

It is not a de Polignac number, because 70744493 - 2² = 70744489 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70744403) 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, 40418 + ... + 42131.

It is an arithmetic number, because the mean of its divisors is an integer number (17706975).

Almost surely, 2^70744493 is an apocalyptic number.

It is an amenable number.

70744493 is a deficient number, since it is larger than the sum of its proper divisors (83407).

70744493 is an equidigital number, since it uses as much as digits as its factorization.

70744493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83406.

The product of its (nonzero) digits is 84672, while the sum is 38.

The square root of 70744493 is about 8410.9745570891. The cubic root of 70744493 is about 413.5844605706.

The spelling of 70744493 in words is "seventy million, seven hundred forty-four thousand, four hundred ninety-three".