34785986 has 4 divisors (see below), whose sum is σ = 52178982. Its totient is φ = 17392992.

The previous prime is 34785983. The next prime is 34785997. The reversal of 34785986 is 68958743.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 68958743 = 7 ⋅9851249.

It can be written as a sum of positive squares in only one way, i.e., 32273761 + 2512225 = 5681^2 + 1585^2 .

It is not an unprimeable number, because it can be changed into a prime (34785983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8696495 + ... + 8696498.

Almost surely, 2^34785986 is an apocalyptic number.

34785986 is a deficient number, since it is larger than the sum of its proper divisors (17392996).

34785986 is a wasteful number, since it uses less digits than its factorization.

34785986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17392995.

The product of its digits is 1451520, while the sum is 50.

The square root of 34785986 is about 5897.9645641526. The cubic root of 34785986 is about 326.4385493785.

The spelling of 34785986 in words is "thirty-four million, seven hundred eighty-five thousand, nine hundred eighty-six".