69490489 has 4 divisors (see below), whose sum is σ = 69524560. Its totient is φ = 69456420.

The previous prime is 69490481. The next prime is 69490507. The reversal of 69490489 is 98409496.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 69490489 - 2³ = 69490481 is a prime.

It is a super-2 number, since 2×69490489² = 9657856122918242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (69490481) 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, 13767 + ... + 18124.

It is an arithmetic number, because the mean of its divisors is an integer number (17381140).

Almost surely, 2^69490489 is an apocalyptic number.

It is an amenable number.

69490489 is a deficient number, since it is larger than the sum of its proper divisors (34071).

69490489 is a wasteful number, since it uses less digits than its factorization.

69490489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34070.

The product of its (nonzero) digits is 559872, while the sum is 49.

The square root of 69490489 is about 8336.0955488766. The cubic root of 69490489 is about 411.1261701623.

The spelling of 69490489 in words is "sixty-nine million, four hundred ninety thousand, four hundred eighty-nine".