75494819 has 2 divisors, whose sum is σ = 75494820. Its totient is φ = 75494818.

The previous prime is 75494747. The next prime is 75494821. The reversal of 75494819 is 91849457.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 75494819 - 2¹⁶ = 75429283 is a prime.

It is a super-2 number, since 2×75494819² = 11398935391685522, which contains 22 as substring.

Together with 75494821, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (75494879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37747409 + 37747410.

It is an arithmetic number, because the mean of its divisors is an integer number (37747410).

Almost surely, 2^75494819 is an apocalyptic number.

75494819 is a deficient number, since it is larger than the sum of its proper divisors (1).

75494819 is an equidigital number, since it uses as much as digits as its factorization.

75494819 is an evil number, because the sum of its binary digits is even.

The product of its digits is 362880, while the sum is 47.

The square root of 75494819 is about 8688.7754603281. The cubic root of 75494819 is about 422.6417371638.

The spelling of 75494819 in words is "seventy-five million, four hundred ninety-four thousand, eight hundred nineteen".