2757397 has 2 divisors, whose sum is σ = 2757398. Its totient is φ = 2757396.

The previous prime is 2757379. The next prime is 2757437. The reversal of 2757397 is 7937572.

Together with previous prime (2757379) it forms an Ormiston pair, because they use the same digits, order apart.

It is an a-pointer prime, because the next prime (2757437) can be obtained adding 2757397 to its sum of digits (40).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2692881 + 64516 = 1641^2 + 254^2 .

It is a cyclic number.

It is not a de Polignac number, because 2757397 - 2¹⁵ = 2724629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2757317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1378698 + 1378699.

It is an arithmetic number, because the mean of its divisors is an integer number (1378699).

2^2757397 is an apocalyptic number.

It is an amenable number.

2757397 is a deficient number, since it is larger than the sum of its proper divisors (1).

2757397 is an equidigital number, since it uses as much as digits as its factorization.

2757397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 92610, while the sum is 40.

The square root of 2757397 is about 1660.5411768457. The cubic root of 2757397 is about 140.2274703448.

The spelling of 2757397 in words is "two million, seven hundred fifty-seven thousand, three hundred ninety-seven".