41721901 has 8 divisors (see below), whose sum is σ = 45368960. Its totient is φ = 38137392.

The previous prime is 41721881. The next prime is 41721907. The reversal of 41721901 is 10912714.

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

It is a cyclic number.

It is not a de Polignac number, because 41721901 - 2⁷ = 41721773 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41721907) 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, 14241 + ... + 16918.

It is an arithmetic number, because the mean of its divisors is an integer number (5671120).

Almost surely, 2^41721901 is an apocalyptic number.

It is an amenable number.

41721901 is a deficient number, since it is larger than the sum of its proper divisors (3647059).

41721901 is a wasteful number, since it uses less digits than its factorization.

41721901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31275.

The product of its (nonzero) digits is 504, while the sum is 25.

The square root of 41721901 is about 6459.2492597824. The cubic root of 41721901 is about 346.8337589256.

The spelling of 41721901 in words is "forty-one million, seven hundred twenty-one thousand, nine hundred one".