427706765 has 8 divisors (see below), whose sum is σ = 513361248. Its totient is φ = 342090000.

The previous prime is 427706749. The next prime is 427706803. The reversal of 427706765 is 567607724.

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

It is not a de Polignac number, because 427706765 - 2⁴ = 427706749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32390 + ... + 43640.

It is an arithmetic number, because the mean of its divisors is an integer number (64170156).

Almost surely, 2^427706765 is an apocalyptic number.

It is an amenable number.

427706765 is a deficient number, since it is larger than the sum of its proper divisors (85654483).

427706765 is a wasteful number, since it uses less digits than its factorization.

427706765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18859.

The product of its (nonzero) digits is 493920, while the sum is 44.

The square root of 427706765 is about 20681.0726269215. The cubic root of 427706765 is about 753.4400579516.

The spelling of 427706765 in words is "four hundred twenty-seven million, seven hundred six thousand, seven hundred sixty-five".