2690427 has 6 divisors (see below), whose sum is σ = 3591028. Its totient is φ = 1791724.

The previous prime is 2690411. The next prime is 2690431. The reversal of 2690427 is 7240962.

It is a happy number.

It is not a de Polignac number, because 2690427 - 2⁴ = 2690411 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2690394 and 2690403.

It is not an unprimeable number, because it can be changed into a prime (2690497) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2368 + ... + 3314.

2^2690427 is an apocalyptic number.

2690427 is a deficient number, since it is larger than the sum of its proper divisors (900601).

2690427 is an frugal number, since it uses more digits than its factorization.

2690427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1897 (or 950 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 2690427 is about 1640.2521147677. The cubic root of 2690427 is about 139.0829000161.

The spelling of 2690427 in words is "two million, six hundred ninety thousand, four hundred twenty-seven".