8402949 has 12 divisors (see below), whose sum is σ = 12164256. Its totient is φ = 5589672.

The previous prime is 8402917. The next prime is 8402951. The reversal of 8402949 is 9492048.

It is a happy number.

It is not a de Polignac number, because 8402949 - 2⁵ = 8402917 is a prime.

8402949 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8402969) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5464 + ... + 6830.

It is an arithmetic number, because the mean of its divisors is an integer number (1013688).

Almost surely, 2^8402949 is an apocalyptic number.

It is an amenable number.

8402949 is a deficient number, since it is larger than the sum of its proper divisors (3761307).

8402949 is a wasteful number, since it uses less digits than its factorization.

8402949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2056 (or 2053 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 8402949 is about 2898.7840554274. The cubic root of 8402949 is about 203.3030570944.

The spelling of 8402949 in words is "eight million, four hundred two thousand, nine hundred forty-nine".