69425778 has 8 divisors (see below), whose sum is σ = 138851568. Its totient is φ = 23141924.

The previous prime is 69425777. The next prime is 69425789. The reversal of 69425778 is 87752496.

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

69425778 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (69425777) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5785476 + ... + 5785487.

It is an arithmetic number, because the mean of its divisors is an integer number (17356446).

Almost surely, 2^69425778 is an apocalyptic number.

69425778 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

69425778 is a wasteful number, since it uses less digits than its factorization.

69425778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11570968.

The product of its digits is 846720, while the sum is 48.

The square root of 69425778 is about 8332.2132713943. The cubic root of 69425778 is about 410.9985140929.

It can be divided in two parts, 6942 and 5778, that added together give a triangular number (12720 = T₁₅₉).

The spelling of 69425778 in words is "sixty-nine million, four hundred twenty-five thousand, seven hundred seventy-eight".