9749390 has 64 divisors (see below), whose sum is σ = 21288960. Its totient is φ = 3144960.

The previous prime is 9749359. The next prime is 9749393. The reversal of 9749390 is 939479.

9749390 = 455² + 456² + ... + 497².

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9749393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 123371 + ... + 123449.

It is an arithmetic number, because the mean of its divisors is an integer number (332640).

Almost surely, 2^9749390 is an apocalyptic number.

9749390 is an abundant number, since it is smaller than the sum of its proper divisors (11539570).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9749390 is a wasteful number, since it uses less digits than its factorization.

9749390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177.

The product of its (nonzero) digits is 61236, while the sum is 41.

The square root of 9749390 is about 3122.4013194975. The cubic root of 9749390 is about 213.6284787410.

The spelling of 9749390 in words is "nine million, seven hundred forty-nine thousand, three hundred ninety".