20834746 has 4 divisors (see below), whose sum is σ = 31252122. Its totient is φ = 10417372.

The previous prime is 20834717. The next prime is 20834761. The reversal of 20834746 is 64743802.

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., 10817521 + 10017225 = 3289^2 + 3165^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5208685 + ... + 5208688.

Almost surely, 2^20834746 is an apocalyptic number.

20834746 is a deficient number, since it is larger than the sum of its proper divisors (10417376).

20834746 is a wasteful number, since it uses less digits than its factorization.

20834746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10417375.

The product of its (nonzero) digits is 32256, while the sum is 34.

The square root of 20834746 is about 4564.5093931331. The cubic root of 20834746 is about 275.1668232974.

The spelling of 20834746 in words is "twenty million, eight hundred thirty-four thousand, seven hundred forty-six".