3678722 has 4 divisors (see below), whose sum is σ = 5518086. Its totient is φ = 1839360.

The previous prime is 3678713. The next prime is 3678743. The reversal of 3678722 is 2278763.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2278763 = 857 ⋅2659.

It can be written as a sum of positive squares in only one way, i.e., 1907161 + 1771561 = 1381^2 + 1331^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 919679 + ... + 919682.

Almost surely, 2^3678722 is an apocalyptic number.

3678722 is a deficient number, since it is larger than the sum of its proper divisors (1839364).

3678722 is a wasteful number, since it uses less digits than its factorization.

3678722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1839363.

The product of its digits is 28224, while the sum is 35.

The square root of 3678722 is about 1917.9994786235. Note that the first 3 decimals coincide. The cubic root of 3678722 is about 154.3709783301.

The spelling of 3678722 in words is "three million, six hundred seventy-eight thousand, seven hundred twenty-two".