213650722 has 4 divisors (see below), whose sum is σ = 320476086. Its totient is φ = 106825360.

The previous prime is 213650693. The next prime is 213650753. The reversal of 213650722 is 227056312.

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., 212838921 + 811801 = 14589^2 + 901^2 .

It is a super-2 number, since 2×213650722² = 91293262022242568, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53412679 + ... + 53412682.

Almost surely, 2^213650722 is an apocalyptic number.

213650722 is a deficient number, since it is larger than the sum of its proper divisors (106825364).

213650722 is a wasteful number, since it uses less digits than its factorization.

213650722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106825363.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 213650722 is about 14616.7958869241. The cubic root of 213650722 is about 597.8168083513.

The spelling of 213650722 in words is "two hundred thirteen million, six hundred fifty thousand, seven hundred twenty-two".