76473949 has 2 divisors, whose sum is σ = 76473950. Its totient is φ = 76473948.

The previous prime is 76473893. The next prime is 76473953. The reversal of 76473949 is 94937467.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63202500 + 13271449 = 7950^2 + 3643^2 .

It is an emirp because it is prime and its reverse (94937467) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 76473949 - 2⁹ = 76473437 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 (76473989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38236974 + 38236975.

It is an arithmetic number, because the mean of its divisors is an integer number (38236975).

Almost surely, 2^76473949 is an apocalyptic number.

It is an amenable number.

76473949 is a deficient number, since it is larger than the sum of its proper divisors (1).

76473949 is an equidigital number, since it uses as much as digits as its factorization.

76473949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1143072, while the sum is 49.

The square root of 76473949 is about 8744.9384789145. The cubic root of 76473949 is about 424.4610450828.

The spelling of 76473949 in words is "seventy-six million, four hundred seventy-three thousand, nine hundred forty-nine".