51434786 has 16 divisors (see below), whose sum is σ = 87460800. Its totient is φ = 22489488.

The previous prime is 51434783. The next prime is 51434807. The reversal of 51434786 is 68743415.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is not an unprimeable number, because it can be changed into a prime (51434783) 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, 51566 + ... + 52553.

It is an arithmetic number, because the mean of its divisors is an integer number (5466300).

Almost surely, 2^51434786 is an apocalyptic number.

51434786 is a deficient number, since it is larger than the sum of its proper divisors (36026014).

51434786 is a wasteful number, since it uses less digits than its factorization.

51434786 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104153.

The product of its digits is 80640, while the sum is 38.

The square root of 51434786 is about 7171.8049332089. The cubic root of 51434786 is about 371.8938350840.

The spelling of 51434786 in words is "fifty-one million, four hundred thirty-four thousand, seven hundred eighty-six".