3920722 has 8 divisors (see below), whose sum is σ = 6333516. Its totient is φ = 1809552.

The previous prime is 3920689. The next prime is 3920729. The reversal of 3920722 is 2270293.

It can be written as a sum of positive squares in 2 ways, for example, as 3389281 + 531441 = 1841^2 + 729^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×3920722² = 30744122002568, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3920729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75373 + ... + 75424.

Almost surely, 2^3920722 is an apocalyptic number.

3920722 is a deficient number, since it is larger than the sum of its proper divisors (2412794).

3920722 is a wasteful number, since it uses less digits than its factorization.

3920722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150812.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 3920722 is about 1980.0813114617. The cubic root of 3920722 is about 157.6843830365.

The spelling of 3920722 in words is "three million, nine hundred twenty thousand, seven hundred twenty-two".