74477479 has 2 divisors, whose sum is σ = 74477480. Its totient is φ = 74477478.

The previous prime is 74477437. The next prime is 74477489. The reversal of 74477479 is 97477447.

It is a strong prime.

It is an emirp because it is prime and its reverse (97477447) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 74477479 - 2¹¹ = 74475431 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74477489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37238739 + 37238740.

It is an arithmetic number, because the mean of its divisors is an integer number (37238740).

Almost surely, 2^74477479 is an apocalyptic number.

74477479 is a deficient number, since it is larger than the sum of its proper divisors (1).

74477479 is an equidigital number, since it uses as much as digits as its factorization.

74477479 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1382976, while the sum is 49.

The square root of 74477479 is about 8630.0335457054. The cubic root of 74477479 is about 420.7346910281.

The spelling of 74477479 in words is "seventy-four million, four hundred seventy-seven thousand, four hundred seventy-nine".