70073249 has 4 divisors (see below), whose sum is σ = 73119936. Its totient is φ = 67026564.

The previous prime is 70073243. The next prime is 70073257. The reversal of 70073249 is 94237007.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 94237007 = 227 ⋅415141.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70073249 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (70073243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1523309 + ... + 1523354.

It is an arithmetic number, because the mean of its divisors is an integer number (18279984).

Almost surely, 2^70073249 is an apocalyptic number.

It is an amenable number.

70073249 is a deficient number, since it is larger than the sum of its proper divisors (3046687).

70073249 is a wasteful number, since it uses less digits than its factorization.

70073249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3046686.

The product of its (nonzero) digits is 10584, while the sum is 32.

The square root of 70073249 is about 8370.9765857993. The cubic root of 70073249 is about 412.2722322622.

The spelling of 70073249 in words is "seventy million, seventy-three thousand, two hundred forty-nine".