424751869 has 2 divisors, whose sum is σ = 424751870. Its totient is φ = 424751868.

The previous prime is 424751861. The next prime is 424751903. The reversal of 424751869 is 968157424.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 419635225 + 5116644 = 20485^2 + 2262^2 .

It is a cyclic number.

It is not a de Polignac number, because 424751869 - 2³ = 424751861 is a prime.

It is a super-2 number, since 2×424751869² = 360828300437986322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (424751861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212375934 + 212375935.

It is an arithmetic number, because the mean of its divisors is an integer number (212375935).

Almost surely, 2^424751869 is an apocalyptic number.

It is an amenable number.

424751869 is a deficient number, since it is larger than the sum of its proper divisors (1).

424751869 is an equidigital number, since it uses as much as digits as its factorization.

424751869 is an evil number, because the sum of its binary digits is even.

The product of its digits is 483840, while the sum is 46.

The square root of 424751869 is about 20609.5091887216. The cubic root of 424751869 is about 751.7009506986.

It can be divided in two parts, 42475 and 1869, that added together give a palindrome (44344).

The spelling of 424751869 in words is "four hundred twenty-four million, seven hundred fifty-one thousand, eight hundred sixty-nine".