427211247 has 8 divisors (see below), whose sum is σ = 581734656. Its totient is φ = 278747672.

The previous prime is 427211237. The next prime is 427211251. The reversal of 427211247 is 742112724.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 427211247 - 2¹⁶ = 427145711 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427211237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1514793 + ... + 1515074.

It is an arithmetic number, because the mean of its divisors is an integer number (72716832).

Almost surely, 2^427211247 is an apocalyptic number.

427211247 is a gapful number since it is divisible by the number (47) formed by its first and last digit.

427211247 is a deficient number, since it is larger than the sum of its proper divisors (154523409).

427211247 is a wasteful number, since it uses less digits than its factorization.

427211247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3029917.

The product of its digits is 6272, while the sum is 30.

The square root of 427211247 is about 20669.0891671597. The cubic root of 427211247 is about 753.1489805028.

The spelling of 427211247 in words is "four hundred twenty-seven million, two hundred eleven thousand, two hundred forty-seven".