786422146 has 4 divisors (see below), whose sum is σ = 1179633222. Its totient is φ = 393211072.

The previous prime is 786422137. The next prime is 786422171. The reversal of 786422146 is 641224687.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 774787225 + 11634921 = 27835^2 + 3411^2 .

It is a junction number, because it is equal to n+sod(n) for n = 786422099 and 786422108.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 196605535 + ... + 196605538.

Almost surely, 2^786422146 is an apocalyptic number.

786422146 is a deficient number, since it is larger than the sum of its proper divisors (393211076).

786422146 is a wasteful number, since it uses less digits than its factorization.

786422146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393211075.

The product of its digits is 129024, while the sum is 40.

The square root of 786422146 is about 28043.2192517193. The cubic root of 786422146 is about 923.0358697486.

The spelling of 786422146 in words is "seven hundred eighty-six million, four hundred twenty-two thousand, one hundred forty-six".