5215739 has 2 divisors, whose sum is σ = 5215740. Its totient is φ = 5215738.

The previous prime is 5215729. The next prime is 5215751. The reversal of 5215739 is 9375125.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5215739 - 2¹⁶ = 5150203 is a prime.

It is a super-2 number, since 2×5215739² = 54407866632242, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (5215729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2607869 + 2607870.

It is an arithmetic number, because the mean of its divisors is an integer number (2607870).

Almost surely, 2^5215739 is an apocalyptic number.

5215739 is a deficient number, since it is larger than the sum of its proper divisors (1).

5215739 is an equidigital number, since it uses as much as digits as its factorization.

5215739 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9450, while the sum is 32.

The square root of 5215739 is about 2283.7992468691. The cubic root of 5215739 is about 173.4224365188.

The spelling of 5215739 in words is "five million, two hundred fifteen thousand, seven hundred thirty-nine".