75738979 has 2 divisors, whose sum is σ = 75738980. Its totient is φ = 75738978.

The previous prime is 75738967. The next prime is 75738989. The reversal of 75738979 is 97983757.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 75738979 - 2⁵ = 75738947 is a prime.

It is not a weakly prime, because it can be changed into another prime (75738989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37869489 + 37869490.

It is an arithmetic number, because the mean of its divisors is an integer number (37869490).

Almost surely, 2^75738979 is an apocalyptic number.

75738979 is a deficient number, since it is larger than the sum of its proper divisors (1).

75738979 is an equidigital number, since it uses as much as digits as its factorization.

75738979 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3333960, while the sum is 55.

The square root of 75738979 is about 8702.8144298267. The cubic root of 75738979 is about 423.0968728571.

The spelling of 75738979 in words is "seventy-five million, seven hundred thirty-eight thousand, nine hundred seventy-nine".