75497479 has 2 divisors, whose sum is σ = 75497480. Its totient is φ = 75497478.

The previous prime is 75497467. The next prime is 75497483. The reversal of 75497479 is 97479457.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 75497479 - 2⁷ = 75497351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75497489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37748739 + 37748740.

It is an arithmetic number, because the mean of its divisors is an integer number (37748740).

Almost surely, 2^75497479 is an apocalyptic number.

75497479 is a deficient number, since it is larger than the sum of its proper divisors (1).

75497479 is an equidigital number, since it uses as much as digits as its factorization.

75497479 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2222640, while the sum is 52.

The square root of 75497479 is about 8688.9285300318. The cubic root of 75497479 is about 422.6467009209.

The spelling of 75497479 in words is "seventy-five million, four hundred ninety-seven thousand, four hundred seventy-nine".