906248389 has 8 divisors (see below), whose sum is σ = 937717760. Its totient is φ = 874918800.

The previous prime is 906248381. The next prime is 906248401. The reversal of 906248389 is 983842609.

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 906248389 - 2³ = 906248381 is a prime.

It is a super-2 number, since 2×906248389² = 1642572285130190642, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (906248381) 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, 21669 + ... + 47770.

It is an arithmetic number, because the mean of its divisors is an integer number (117214720).

Almost surely, 2^906248389 is an apocalyptic number.

It is an amenable number.

906248389 is a deficient number, since it is larger than the sum of its proper divisors (31469371).

906248389 is a wasteful number, since it uses less digits than its factorization.

906248389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69891.

The product of its (nonzero) digits is 746496, while the sum is 49.

The square root of 906248389 is about 30103.9596897152. The cubic root of 906248389 is about 967.7185867330.

The spelling of 906248389 in words is "nine hundred six million, two hundred forty-eight thousand, three hundred eighty-nine".