2435921 has 2 divisors, whose sum is σ = 2435922. Its totient is φ = 2435920.

The previous prime is 2435911. The next prime is 2435929. The reversal of 2435921 is 1295342.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1661521 + 774400 = 1289^2 + 880^2 .

It is a cyclic number.

It is not a de Polignac number, because 2435921 - 2¹⁸ = 2173777 is a prime.

It is a super-2 number, since 2×2435921² = 11867422236482, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2435929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1217960 + 1217961.

It is an arithmetic number, because the mean of its divisors is an integer number (1217961).

2^2435921 is an apocalyptic number.

It is an amenable number.

2435921 is a deficient number, since it is larger than the sum of its proper divisors (1).

2435921 is an equidigital number, since it uses as much as digits as its factorization.

2435921 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2160, while the sum is 26.

The square root of 2435921 is about 1560.7437329684. The cubic root of 2435921 is about 134.5512488789.

The spelling of 2435921 in words is "two million, four hundred thirty-five thousand, nine hundred twenty-one".