906849261 has 6 divisors (see below), whose sum is σ = 1309893390. Its totient is φ = 604566168.

The previous prime is 906849257. The next prime is 906849283. The reversal of 906849261 is 162948609.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 899640036 + 7209225 = 29994^2 + 2685^2 .

It is not a de Polignac number, because 906849261 - 2² = 906849257 is a prime.

It is a super-2 number, since 2×906849261² = 1644751164352492242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (906889261) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 50380506 + ... + 50380523.

It is an arithmetic number, because the mean of its divisors is an integer number (218315565).

Almost surely, 2^906849261 is an apocalyptic number.

It is an amenable number.

906849261 is a deficient number, since it is larger than the sum of its proper divisors (403044129).

906849261 is a wasteful number, since it uses less digits than its factorization.

906849261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100761035 (or 100761032 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 906849261 is about 30113.9379855907. The cubic root of 906849261 is about 967.9324157246.

The spelling of 906849261 in words is "nine hundred six million, eight hundred forty-nine thousand, two hundred sixty-one".