426871791 has 12 divisors (see below), whose sum is σ = 620158968. Its totient is φ = 282935184.

The previous prime is 426871777. The next prime is 426871799. The reversal of 426871791 is 197178624.

It is a happy number.

It is not a de Polignac number, because 426871791 - 2¹³ = 426863599 is a prime.

It is a super-3 number, since 3×426871791³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426871799) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 135525 + ... + 138638.

It is an arithmetic number, because the mean of its divisors is an integer number (51679914).

Almost surely, 2^426871791 is an apocalyptic number.

426871791 is a deficient number, since it is larger than the sum of its proper divisors (193287177).

426871791 is a wasteful number, since it uses less digits than its factorization.

426871791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274342 (or 274339 counting only the distinct ones).

The product of its digits is 169344, while the sum is 45.

The square root of 426871791 is about 20660.8758526835. The cubic root of 426871791 is about 752.9494471440.

The spelling of 426871791 in words is "four hundred twenty-six million, eight hundred seventy-one thousand, seven hundred ninety-one".