74222377 has 2 divisors, whose sum is σ = 74222378. Its totient is φ = 74222376.

The previous prime is 74222329. The next prime is 74222381. The reversal of 74222377 is 77322247.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44235801 + 29986576 = 6651^2 + 5476^2 .

It is a cyclic number.

It is not a de Polignac number, because 74222377 - 2⁷ = 74222249 is a prime.

It is a super-2 number, since 2×74222377² = 11017922495060258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (74222077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37111188 + 37111189.

It is an arithmetic number, because the mean of its divisors is an integer number (37111189).

Almost surely, 2^74222377 is an apocalyptic number.

It is an amenable number.

74222377 is a deficient number, since it is larger than the sum of its proper divisors (1).

74222377 is an equidigital number, since it uses as much as digits as its factorization.

74222377 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32928, while the sum is 34.

The square root of 74222377 is about 8615.2409716734. The cubic root of 74222377 is about 420.2537714281.

The spelling of 74222377 in words is "seventy-four million, two hundred twenty-two thousand, three hundred seventy-seven".