730187961 has 16 divisors (see below), whose sum is σ = 1037038464. Its totient is φ = 455408384.

The previous prime is 730187959. The next prime is 730187977. The reversal of 730187961 is 169781037.

730187961 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 730187961 - 2¹ = 730187959 is a prime.

It is not an unprimeable number, because it can be changed into a prime (730187561) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34350 + ... + 51383.

It is an arithmetic number, because the mean of its divisors is an integer number (64814904).

Almost surely, 2^730187961 is an apocalyptic number.

It is an amenable number.

730187961 is a deficient number, since it is larger than the sum of its proper divisors (306850503).

730187961 is a wasteful number, since it uses less digits than its factorization.

730187961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85920.

The product of its (nonzero) digits is 63504, while the sum is 42.

The square root of 730187961 is about 27021.9903226983. The cubic root of 730187961 is about 900.4886075278.

The spelling of 730187961 in words is "seven hundred thirty million, one hundred eighty-seven thousand, nine hundred sixty-one".