741217021 has 8 divisors (see below), whose sum is σ = 775526400. Its totient is φ = 707081232.

The previous prime is 741217013. The next prime is 741217027. The reversal of 741217021 is 120712147.

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 741217021 - 2³ = 741217013 is a prime.

It is a super-2 number, since 2×741217021² = 1098805344440228882, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (741217027) 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, 34621 + ... + 51778.

It is an arithmetic number, because the mean of its divisors is an integer number (96940800).

Almost surely, 2^741217021 is an apocalyptic number.

It is an amenable number.

741217021 is a deficient number, since it is larger than the sum of its proper divisors (34309379).

741217021 is a wasteful number, since it uses less digits than its factorization.

741217021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86795.

The product of its (nonzero) digits is 784, while the sum is 25.

The square root of 741217021 is about 27225.3011186286. The cubic root of 741217021 is about 904.9997541792. Note that the first 3 decimals are identical.

Adding to 741217021 its reverse (120712147), we get a palindrome (861929168).

The spelling of 741217021 in words is "seven hundred forty-one million, two hundred seventeen thousand, twenty-one".