34923991 has 2 divisors, whose sum is σ = 34923992. Its totient is φ = 34923990.

The previous prime is 34923983. The next prime is 34923997. The reversal of 34923991 is 19932943.

It is a strong prime.

It is an emirp because it is prime and its reverse (19932943) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 34923991 - 2³ = 34923983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34923997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17461995 + 17461996.

It is an arithmetic number, because the mean of its divisors is an integer number (17461996).

Almost surely, 2^34923991 is an apocalyptic number.

34923991 is a deficient number, since it is larger than the sum of its proper divisors (1).

34923991 is an equidigital number, since it uses as much as digits as its factorization.

34923991 is an evil number, because the sum of its binary digits is even.

The product of its digits is 52488, while the sum is 40.

The square root of 34923991 is about 5909.6523586418. The cubic root of 34923991 is about 326.8696684674.

The spelling of 34923991 in words is "thirty-four million, nine hundred twenty-three thousand, nine hundred ninety-one".