34287919 has 2 divisors, whose sum is σ = 34287920. Its totient is φ = 34287918.

The previous prime is 34287907. The next prime is 34287923. The reversal of 34287919 is 91978243.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 34287919 - 2⁵ = 34287887 is a prime.

It is a super-2 number, since 2×34287919² = 2351322778701122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34287119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17143959 + 17143960.

It is an arithmetic number, because the mean of its divisors is an integer number (17143960).

Almost surely, 2^34287919 is an apocalyptic number.

34287919 is a deficient number, since it is larger than the sum of its proper divisors (1).

34287919 is an equidigital number, since it uses as much as digits as its factorization.

34287919 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108864, while the sum is 43.

The square root of 34287919 is about 5855.5886979876. The cubic root of 34287919 is about 324.8730675913.

The spelling of 34287919 in words is "thirty-four million, two hundred eighty-seven thousand, nine hundred nineteen".