4087397 has 2 divisors, whose sum is σ = 4087398. Its totient is φ = 4087396.

The previous prime is 4087379. The next prime is 4087403. The reversal of 4087397 is 7937804.

Together with previous prime (4087379) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3500641 + 586756 = 1871^2 + 766^2 .

It is a cyclic number.

It is not a de Polignac number, because 4087397 - 2⁶ = 4087333 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4087397.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4087357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2043698 + 2043699.

It is an arithmetic number, because the mean of its divisors is an integer number (2043699).

Almost surely, 2^4087397 is an apocalyptic number.

It is an amenable number.

4087397 is a deficient number, since it is larger than the sum of its proper divisors (1).

4087397 is an equidigital number, since it uses as much as digits as its factorization.

4087397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 4087397 is about 2021.7311888577. The cubic root of 4087397 is about 159.8879032537.

The spelling of 4087397 in words is "four million, eighty-seven thousand, three hundred ninety-seven".