746740521 has 24 divisors (see below), whose sum is σ = 1161444960. Its totient is φ = 460596096.

The previous prime is 746740507. The next prime is 746740541. The reversal of 746740521 is 125047647.

746740521 is a `hidden beast` number, since 74 + 67 + 4 + 0 + 521 = 666.

It is not a de Polignac number, because 746740521 - 2⁶ = 746740457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (746740541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32335 + ... + 50388.

It is an arithmetic number, because the mean of its divisors is an integer number (48393540).

Almost surely, 2^746740521 is an apocalyptic number.

It is an amenable number.

746740521 is a deficient number, since it is larger than the sum of its proper divisors (414704439).

746740521 is a wasteful number, since it uses less digits than its factorization.

746740521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82805 (or 82802 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The square root of 746740521 is about 27326.5534050674. The cubic root of 746740521 is about 907.2421925509.

The spelling of 746740521 in words is "seven hundred forty-six million, seven hundred forty thousand, five hundred twenty-one".