427772307 has 4 divisors (see below), whose sum is σ = 570363080. Its totient is φ = 285181536.

The previous prime is 427772291. The next prime is 427772339. The reversal of 427772307 is 703277724.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 427772307 - 2⁴ = 427772291 is a prime.

It is a super-2 number, since 2×427772307² = 365978293272204498, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (427772347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71295382 + ... + 71295387.

It is an arithmetic number, because the mean of its divisors is an integer number (142590770).

Almost surely, 2^427772307 is an apocalyptic number.

427772307 is a deficient number, since it is larger than the sum of its proper divisors (142590773).

427772307 is a wasteful number, since it uses less digits than its factorization.

427772307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142590772.

The product of its (nonzero) digits is 115248, while the sum is 39.

The square root of 427772307 is about 20682.6571552110. The cubic root of 427772307 is about 753.4785418305.

The spelling of 427772307 in words is "four hundred twenty-seven million, seven hundred seventy-two thousand, three hundred seven".