69961481 has 8 divisors (see below), whose sum is σ = 70626528. Its totient is φ = 69300000.

The previous prime is 69961459. The next prime is 69961499. The reversal of 69961481 is 18416996.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-69961481 is a prime.

It is a super-2 number, since 2×69961481² = 9789217647426722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (69961081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52301 + ... + 53621.

It is an arithmetic number, because the mean of its divisors is an integer number (8828316).

Almost surely, 2^69961481 is an apocalyptic number.

It is an amenable number.

69961481 is a deficient number, since it is larger than the sum of its proper divisors (665047).

69961481 is a wasteful number, since it uses less digits than its factorization.

69961481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1783.

The product of its digits is 93312, while the sum is 44.

The square root of 69961481 is about 8364.2979980390. The cubic root of 69961481 is about 412.0529219259.

The spelling of 69961481 in words is "sixty-nine million, nine hundred sixty-one thousand, four hundred eighty-one".