4294999991 has 2 divisors, whose sum is σ = 4294999992. Its totient is φ = 4294999990.

The previous prime is 4294999957. The next prime is 4295000011. The reversal of 4294999991 is 1999994924.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4294999991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4294099991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2147499995 + 2147499996.

It is an arithmetic number, because the mean of its divisors is an integer number (2147499996).

Almost surely, 2^4294999991 is an apocalyptic number.

4294999991 is a deficient number, since it is larger than the sum of its proper divisors (1).

4294999991 is an equidigital number, since it uses as much as digits as its factorization.

4294999991 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17006112, while the sum is 65.

The square root of 4294999991 is about 65536.2494425795. The cubic root of 4294999991 is about 1625.5028018525.

The spelling of 4294999991 in words is "four billion, two hundred ninety-four million, nine hundred ninety-nine thousand, nine hundred ninety-one".