427790061 has 24 divisors (see below), whose sum is σ = 632005920. Its totient is φ = 278748000.

The previous prime is 427790059. The next prime is 427790119. The reversal of 427790061 is 160097724.

It is a happy number.

It is not a de Polignac number, because 427790061 - 2¹ = 427790059 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 427789998 and 427790025.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427792061) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 93886 + ... + 98336.

It is an arithmetic number, because the mean of its divisors is an integer number (26333580).

Almost surely, 2^427790061 is an apocalyptic number.

It is an amenable number.

427790061 is a deficient number, since it is larger than the sum of its proper divisors (204215859).

427790061 is a wasteful number, since it uses less digits than its factorization.

427790061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4697 (or 4694 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 427790061 is about 20683.0863509294. The cubic root of 427790061 is about 753.4889656570.

The spelling of 427790061 in words is "four hundred twenty-seven million, seven hundred ninety thousand, sixty-one".