69378643 has 8 divisors (see below), whose sum is σ = 73126800. Its totient is φ = 65720928.

The previous prime is 69378629. The next prime is 69378667. The reversal of 69378643 is 34687396.

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 69378643 - 2²¹ = 67281491 is a prime.

It is a super-2 number, since 2×69378643² = 9626792209042898, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 69378593 and 69378602.

It is not an unprimeable number, because it can be changed into a prime (69378613) 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, 21033 + ... + 24106.

It is an arithmetic number, because the mean of its divisors is an integer number (9140850).

Almost surely, 2^69378643 is an apocalyptic number.

69378643 is a deficient number, since it is larger than the sum of its proper divisors (3748157).

69378643 is a wasteful number, since it uses less digits than its factorization.

69378643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45221.

The product of its digits is 653184, while the sum is 46.

The square root of 69378643 is about 8329.3843109800. The cubic root of 69378643 is about 410.9054804421.

The spelling of 69378643 in words is "sixty-nine million, three hundred seventy-eight thousand, six hundred forty-three".