427457251 has 8 divisors (see below), whose sum is σ = 460509840.
Its totient is φ = 394429152.
The previous prime is 427457249. The next prime is 427457257. The reversal of 427457251 is 152754724.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 427457251 - 21 = 427457249 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 427457251.
It is not an unprimeable number, because it can be changed into a prime (427457257) 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, 47736 + ... + 55978.
It is an arithmetic number, because the mean of its divisors is an integer number (57563730).
Almost surely, 2427457251 is an apocalyptic number.
427457251 is a deficient number, since it is larger than the sum of its proper divisors (33052589).
427457251 is a wasteful number, since it uses less digits than its factorization.
427457251 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 12245.
The product of its digits is 78400, while the sum is 37.
The square root of 427457251 is about 20675.0393228163.
The cubic root of 427457251 is about 753.2935164213.
The spelling of 427457251 in words is "four hundred twenty-seven million, four hundred fifty-seven thousand, two hundred fifty-one".