741696521 has 12 divisors (see below), whose sum is σ = 788098500. Its totient is φ = 697893408.

The previous prime is 741696509. The next prime is 741696523. The reversal of 741696521 is 125696147.

It can be written as a sum of positive squares in 2 ways, for example, as 436810000 + 304886521 = 20900^2 + 17461^2 .

It is not a de Polignac number, because 741696521 - 2⁶ = 741696457 is a prime.

It is a super-2 number, since 2×741696521² = 1100227458527006882, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (741696523) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46895 + ... + 60683.

It is an arithmetic number, because the mean of its divisors is an integer number (65674875).

Almost surely, 2^741696521 is an apocalyptic number.

It is an amenable number.

741696521 is a deficient number, since it is larger than the sum of its proper divisors (46401979).

741696521 is a wasteful number, since it uses less digits than its factorization.

741696521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13976 (or 13957 counting only the distinct ones).

The product of its digits is 90720, while the sum is 41.

The square root of 741696521 is about 27234.1058417566. The cubic root of 741696521 is about 905.1948629569.

The spelling of 741696521 in words is "seven hundred forty-one million, six hundred ninety-six thousand, five hundred twenty-one".