69020890 has 16 divisors (see below), whose sum is σ = 126275400. Its totient is φ = 27155520.

The previous prime is 69020879. The next prime is 69020923. The reversal of 69020890 is 9802096.

It can be written as a sum of positive squares in 4 ways, for example, as 38229489 + 30791401 = 6183^2 + 5549^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55965 + ... + 57184.

Almost surely, 2^69020890 is an apocalyptic number.

69020890 is a deficient number, since it is larger than the sum of its proper divisors (57254510).

69020890 is a wasteful number, since it uses less digits than its factorization.

69020890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113217.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 69020890 is about 8307.8811979951. The cubic root of 69020890 is about 410.1979809253.

The spelling of 69020890 in words is "sixty-nine million, twenty thousand, eight hundred ninety".