2692421 has 4 divisors (see below), whose sum is σ = 2702700. Its totient is φ = 2682144.

The previous prime is 2692411. The next prime is 2692427. The reversal of 2692421 is 1242962.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1612900 + 1079521 = 1270^2 + 1039^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2692421 is a prime.

It is a Duffinian number.

2692421 is a modest number, since divided by 2421 gives 269 as remainder.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2692427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4736 + ... + 5273.

It is an arithmetic number, because the mean of its divisors is an integer number (675675).

2^2692421 is an apocalyptic number.

It is an amenable number.

2692421 is a deficient number, since it is larger than the sum of its proper divisors (10279).

2692421 is a wasteful number, since it uses less digits than its factorization.

2692421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10278.

The product of its digits is 1728, while the sum is 26.

The square root of 2692421 is about 1640.8598355740. The cubic root of 2692421 is about 139.1172517896.

It can be divided in two parts, 2692 and 421, that added together give a palindrome (3113).

The spelling of 2692421 in words is "two million, six hundred ninety-two thousand, four hundred twenty-one".