733969561 has 8 divisors (see below), whose sum is σ = 799311240. Its totient is φ = 669896832.

The previous prime is 733969553. The next prime is 733969589. The reversal of 733969561 is 165969337.

It can be written as a sum of positive squares in 4 ways, for example, as 913936 + 733055625 = 956^2 + 27075^2 .

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 733969561 - 2³ = 733969553 is a prime.

It is a super-2 number, since 2×733969561² = 1077422632949065442, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (733969501) 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, 316030 + ... + 318343.

It is an arithmetic number, because the mean of its divisors is an integer number (99913905).

Almost surely, 2^733969561 is an apocalyptic number.

It is an amenable number.

733969561 is a deficient number, since it is larger than the sum of its proper divisors (65341679).

733969561 is a wasteful number, since it uses less digits than its factorization.

733969561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634475.

The product of its digits is 918540, while the sum is 49.

The square root of 733969561 is about 27091.8726004682. The cubic root of 733969561 is about 902.0404572621.

The spelling of 733969561 in words is "seven hundred thirty-three million, nine hundred sixty-nine thousand, five hundred sixty-one".