634396722 has 16 divisors (see below), whose sum is σ = 1284081120. Its totient is φ = 208917632.

The previous prime is 634396691. The next prime is 634396723. The reversal of 634396722 is 227693436.

It is a super-3 number, since 3×634396722³ (a number of 27 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (634396723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 636447 + ... + 637442.

It is an arithmetic number, because the mean of its divisors is an integer number (80255070).

Almost surely, 2^634396722 is an apocalyptic number.

634396722 is an abundant number, since it is smaller than the sum of its proper divisors (649684398).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

634396722 is a wasteful number, since it uses less digits than its factorization.

634396722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1273977.

The product of its digits is 326592, while the sum is 42.

The square root of 634396722 is about 25187.2333137246. The cubic root of 634396722 is about 859.2515220180.

The spelling of 634396722 in words is "six hundred thirty-four million, three hundred ninety-six thousand, seven hundred twenty-two".