730671157 has 2 divisors, whose sum is σ = 730671158. Its totient is φ = 730671156.

The previous prime is 730671133. The next prime is 730671167. The reversal of 730671157 is 751176037.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 602506116 + 128165041 = 24546^2 + 11321^2 .

It is a cyclic number.

It is not a de Polignac number, because 730671157 - 2¹¹ = 730669109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (730671167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 365335578 + 365335579.

It is an arithmetic number, because the mean of its divisors is an integer number (365335579).

Almost surely, 2^730671157 is an apocalyptic number.

It is an amenable number.

730671157 is a deficient number, since it is larger than the sum of its proper divisors (1).

730671157 is an equidigital number, since it uses as much as digits as its factorization.

730671157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30870, while the sum is 37.

The square root of 730671157 is about 27030.9296362519. The cubic root of 730671157 is about 900.6871940901.

The spelling of 730671157 in words is "seven hundred thirty million, six hundred seventy-one thousand, one hundred fifty-seven".