396750157 has 2 divisors, whose sum is σ = 396750158. Its totient is φ = 396750156.

The previous prime is 396750091. The next prime is 396750173. The reversal of 396750157 is 751057693.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 391208841 + 5541316 = 19779^2 + 2354^2 .

It is an emirp because it is prime and its reverse (751057693) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 396750157 - 2¹¹ = 396748109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (396750257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198375078 + 198375079.

It is an arithmetic number, because the mean of its divisors is an integer number (198375079).

Almost surely, 2^396750157 is an apocalyptic number.

It is an amenable number.

396750157 is a deficient number, since it is larger than the sum of its proper divisors (1).

396750157 is an equidigital number, since it uses as much as digits as its factorization.

396750157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 198450, while the sum is 43.

The square root of 396750157 is about 19918.5882280848. The cubic root of 396750157 is about 734.8054505371.

The spelling of 396750157 in words is "three hundred ninety-six million, seven hundred fifty thousand, one hundred fifty-seven".