70073073 has 32 divisors (see below), whose sum is σ = 119040000. Its totient is φ = 39907728.

The previous prime is 70073071. The next prime is 70073117. The reversal of 70073073 is 37037007.

It is not a de Polignac number, because 70073073 - 2¹ = 70073071 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (70073071) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 93940 + ... + 94682.

It is an arithmetic number, because the mean of its divisors is an integer number (3720000).

Almost surely, 2^70073073 is an apocalyptic number.

It is an amenable number.

70073073 is a deficient number, since it is larger than the sum of its proper divisors (48966927).

70073073 is a wasteful number, since it uses less digits than its factorization.

70073073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1258 (or 1252 counting only the distinct ones).

The product of its (nonzero) digits is 3087, while the sum is 27.

The square root of 70073073 is about 8370.9660732797. The cubic root of 70073073 is about 412.2718870997.

The spelling of 70073073 in words is "seventy million, seventy-three thousand, seventy-three".