634861041 has 16 divisors (see below), whose sum is σ = 896197440. Its totient is φ = 398640960.

The previous prime is 634861037. The next prime is 634861043. The reversal of 634861041 is 140168436.

It is not a de Polignac number, because 634861041 - 2² = 634861037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 634860993 and 634861011.

It is not an unprimeable number, because it can be changed into a prime (634861043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22330 + ... + 42051.

It is an arithmetic number, because the mean of its divisors is an integer number (56012340).

Almost surely, 2^634861041 is an apocalyptic number.

It is an amenable number.

634861041 is a deficient number, since it is larger than the sum of its proper divisors (261336399).

634861041 is a wasteful number, since it uses less digits than its factorization.

634861041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64576.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 634861041 is about 25196.4489759966. The cubic root of 634861041 is about 859.4611014487.

The spelling of 634861041 in words is "six hundred thirty-four million, eight hundred sixty-one thousand, forty-one".