427102739 has 4 divisors (see below), whose sum is σ = 488117424. Its totient is φ = 366088056.

The previous prime is 427102681. The next prime is 427102759. The reversal of 427102739 is 937201724.

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

It is a cyclic number.

It is not a de Polignac number, because 427102739 - 2⁸ = 427102483 is a prime.

It is a super-2 number, since 2×427102739² = 364833499322604242, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 427102699 and 427102708.

It is not an unprimeable number, because it can be changed into a prime (427102759) 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 3 ways as a sum of consecutive naturals, for example, 30507332 + ... + 30507345.

It is an arithmetic number, because the mean of its divisors is an integer number (122029356).

Almost surely, 2^427102739 is an apocalyptic number.

427102739 is a deficient number, since it is larger than the sum of its proper divisors (61014685).

427102739 is an equidigital number, since it uses as much as digits as its factorization.

427102739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61014684.

The product of its (nonzero) digits is 21168, while the sum is 35.

The square root of 427102739 is about 20666.4641145988. The cubic root of 427102739 is about 753.0852106387.

The spelling of 427102739 in words is "four hundred twenty-seven million, one hundred two thousand, seven hundred thirty-nine".