73028397 has 32 divisors (see below), whose sum is σ = 107710848. Its totient is φ = 43739136.

The previous prime is 73028383. The next prime is 73028411. The reversal of 73028397 is 79382037.

It is an interprime number because it is at equal distance from previous prime (73028383) and next prime (73028411).

It is not a de Polignac number, because 73028397 - 2¹⁴ = 73012013 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73028357) 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 31 ways as a sum of consecutive naturals, for example, 321598 + ... + 321824.

It is an arithmetic number, because the mean of its divisors is an integer number (3365964).

Almost surely, 2^73028397 is an apocalyptic number.

It is an amenable number.

73028397 is a deficient number, since it is larger than the sum of its proper divisors (34682451).

73028397 is a wasteful number, since it uses less digits than its factorization.

73028397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429.

The product of its (nonzero) digits is 63504, while the sum is 39.

The square root of 73028397 is about 8545.6653924665. The cubic root of 73028397 is about 417.9881047110.

The spelling of 73028397 in words is "seventy-three million, twenty-eight thousand, three hundred ninety-seven".