741577621 has 4 divisors (see below), whose sum is σ = 785199852. Its totient is φ = 697955392.

The previous prime is 741577601. The next prime is 741577631. The reversal of 741577621 is 126775147.

It is a happy number.

741577621 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 591024721 + 150552900 = 24311^2 + 12270^2 .

It is a cyclic number.

It is not a de Polignac number, because 741577621 - 2²³ = 733189013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (741577601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21811090 + ... + 21811123.

It is an arithmetic number, because the mean of its divisors is an integer number (196299963).

Almost surely, 2^741577621 is an apocalyptic number.

It is an amenable number.

741577621 is a deficient number, since it is larger than the sum of its proper divisors (43622231).

741577621 is a wasteful number, since it uses less digits than its factorization.

741577621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43622230.

The product of its digits is 82320, while the sum is 40.

The square root of 741577621 is about 27231.9228296498. The cubic root of 741577621 is about 905.1464903328.

The spelling of 741577621 in words is "seven hundred forty-one million, five hundred seventy-seven thousand, six hundred twenty-one".