752021073 has 12 divisors (see below), whose sum is σ = 1086492420. Its totient is φ = 501236736.

The previous prime is 752021063. The next prime is 752021093. The reversal of 752021073 is 370120257.

It can be written as a sum of positive squares in 2 ways, for example, as 486070209 + 265950864 = 22047^2 + 16308^2 .

It is not a de Polignac number, because 752021073 - 2⁹ = 752020561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (752021003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 66865 + ... + 77297.

It is an arithmetic number, because the mean of its divisors is an integer number (90541035).

Almost surely, 2^752021073 is an apocalyptic number.

It is an amenable number.

752021073 is a deficient number, since it is larger than the sum of its proper divisors (334471347).

752021073 is a wasteful number, since it uses less digits than its factorization.

752021073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18448 (or 18445 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 27.

The square root of 752021073 is about 27423.0026255332. The cubic root of 752021073 is about 909.3756829555.

The spelling of 752021073 in words is "seven hundred fifty-two million, twenty-one thousand, seventy-three".