7339991 has 2 divisors, whose sum is σ = 7339992. Its totient is φ = 7339990.

The previous prime is 7339961. The next prime is 7339999. The reversal of 7339991 is 1999337.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7339991 - 2¹⁰ = 7338967 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7339999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3669995 + 3669996.

It is an arithmetic number, because the mean of its divisors is an integer number (3669996).

Almost surely, 2^7339991 is an apocalyptic number.

7339991 is a deficient number, since it is larger than the sum of its proper divisors (1).

7339991 is an equidigital number, since it uses as much as digits as its factorization.

7339991 is an evil number, because the sum of its binary digits is even.

The product of its digits is 45927, while the sum is 41.

The square root of 7339991 is about 2709.2417758480. The cubic root of 7339991 is about 194.3413323477.

The spelling of 7339991 in words is "seven million, three hundred thirty-nine thousand, nine hundred ninety-one".