418949879 has 2 divisors, whose sum is σ = 418949880. Its totient is φ = 418949878.

The previous prime is 418949857. The next prime is 418949897. The reversal of 418949879 is 978949814.

Together with next prime (418949897) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 418949879 - 2¹⁶ = 418884343 is a prime.

It is a super-2 number, since 2×418949879² = 351038002228229282, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (418979879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 209474939 + 209474940.

It is an arithmetic number, because the mean of its divisors is an integer number (209474940).

Almost surely, 2^418949879 is an apocalyptic number.

418949879 is a deficient number, since it is larger than the sum of its proper divisors (1).

418949879 is an equidigital number, since it uses as much as digits as its factorization.

418949879 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5225472, while the sum is 59.

The square root of 418949879 is about 20468.2651683038. The cubic root of 418949879 is about 748.2625732018.

The spelling of 418949879 in words is "four hundred eighteen million, nine hundred forty-nine thousand, eight hundred seventy-nine".