69039481 has 9 divisors (see below), whose sum is σ = 80378949. Its totient is φ = 59126844.

The previous prime is 69039473. The next prime is 69039527. The reversal of 69039481 is 18493096.

The square root of 69039481 is 8309.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 69039481 - 2³ = 69039473 is a prime.

It is a super-2 number, since 2×69039481² = 9532899873498722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (69039281) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 57570 + ... + 58756.

Almost surely, 2^69039481 is an apocalyptic number.

69039481 is the 8309-th square number.

69039481 is the 4155-th centered octagonal number.

It is an amenable number.

69039481 is a deficient number, since it is larger than the sum of its proper divisors (11339468).

69039481 is an frugal number, since it uses more digits than its factorization.

69039481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2388 (or 1194 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 40.

The cubic root of 69039481 is about 410.2348070034.

Multiplying 69039481 by its product of nonzero digits (46656), we get a square (3221106025536 = 1794744²).

It can be divided in two parts, 6903 and 9481, that added together give a 14-th power (16384 = 2¹⁴).

The spelling of 69039481 in words is "sixty-nine million, thirty-nine thousand, four hundred eighty-one".