745948661 has 8 divisors (see below), whose sum is σ = 790430400. Its totient is φ = 701533888.

The previous prime is 745948631. The next prime is 745948699. The reversal of 745948661 is 166849547.

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 745948661 - 2²⁶ = 678839797 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 (745948631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7190 + ... + 39288.

It is an arithmetic number, because the mean of its divisors is an integer number (98803800).

Almost surely, 2^745948661 is an apocalyptic number.

It is an amenable number.

745948661 is a deficient number, since it is larger than the sum of its proper divisors (44481739).

745948661 is a wasteful number, since it uses less digits than its factorization.

745948661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33483.

The product of its digits is 1451520, while the sum is 50.

The square root of 745948661 is about 27312.0607241563. The cubic root of 745948661 is about 906.9213926341.

It can be divided in two parts, 7459486 and 61, that added together give a palindrome (7459547).

The spelling of 745948661 in words is "seven hundred forty-five million, nine hundred forty-eight thousand, six hundred sixty-one".