2902257 has 16 divisors (see below), whose sum is σ = 4553280. Its totient is φ = 1820736.

The previous prime is 2902219. The next prime is 2902259. The reversal of 2902257 is 7522092.

It is a happy number.

It is not a de Polignac number, because 2902257 - 2¹⁶ = 2836721 is a prime.

It is a super-3 number, since 3×2902257³ = 73337965319170705779, which contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 2902257.

It is not an unprimeable number, because it can be changed into a prime (2902259) 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, 2703 + ... + 3620.

It is an arithmetic number, because the mean of its divisors is an integer number (284580).

2^2902257 is an apocalyptic number.

2902257 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

2902257 is a deficient number, since it is larger than the sum of its proper divisors (1651023).

2902257 is a wasteful number, since it uses less digits than its factorization.

2902257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6349 (or 6343 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 2902257 is about 1703.6011857239. The cubic root of 2902257 is about 142.6413002862.

The spelling of 2902257 in words is "two million, nine hundred two thousand, two hundred fifty-seven".