730251973 has 4 divisors (see below), whose sum is σ = 796638528. Its totient is φ = 663865420.

The previous prime is 730251971. The next prime is 730252013. The reversal of 730251973 is 379152037.

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.

It is a cyclic number.

It is not a de Polignac number, because 730251973 - 2¹ = 730251971 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 (730251971) 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, 33193261 + ... + 33193282.

It is an arithmetic number, because the mean of its divisors is an integer number (199159632).

Almost surely, 2^730251973 is an apocalyptic number.

It is an amenable number.

730251973 is a deficient number, since it is larger than the sum of its proper divisors (66386555).

730251973 is a wasteful number, since it uses less digits than its factorization.

730251973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66386554.

The product of its (nonzero) digits is 39690, while the sum is 37.

The square root of 730251973 is about 27023.1747394713. The cubic root of 730251973 is about 900.5149205666.

The spelling of 730251973 in words is "seven hundred thirty million, two hundred fifty-one thousand, nine hundred seventy-three".