74127770 has 16 divisors (see below), whose sum is σ = 138031560. Its totient is φ = 28628544.

The previous prime is 74127737. The next prime is 74127773. The reversal of 74127770 is 7772147.

It can be written as a sum of positive squares in 4 ways, for example, as 32821441 + 41306329 = 5729^2 + 6427^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 74127770.

It is not an unprimeable number, because it can be changed into a prime (74127773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127517 + ... + 128096.

Almost surely, 2^74127770 is an apocalyptic number.

74127770 is a deficient number, since it is larger than the sum of its proper divisors (63903790).

74127770 is a wasteful number, since it uses less digits than its factorization.

74127770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255649.

The product of its (nonzero) digits is 19208, while the sum is 35.

The square root of 74127770 is about 8609.7485445279. The cubic root of 74127770 is about 420.0751377287.

The spelling of 74127770 in words is "seventy-four million, one hundred twenty-seven thousand, seven hundred seventy".