10397720 has 16 divisors (see below), whose sum is σ = 23394960. Its totient is φ = 4159072.

The previous prime is 10397711. The next prime is 10397753. The reversal of 10397720 is 2779301.

It is a happy number.

It is a super-3 number, since 3×10397720³ (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 129932 + ... + 130011.

It is an arithmetic number, because the mean of its divisors is an integer number (1462185).

Almost surely, 2^10397720 is an apocalyptic number.

10397720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10397720 is an abundant number, since it is smaller than the sum of its proper divisors (12997240).

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

10397720 is a wasteful number, since it uses less digits than its factorization.

10397720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259954 (or 259950 counting only the distinct ones).

The product of its (nonzero) digits is 2646, while the sum is 29.

The square root of 10397720 is about 3224.5495809493. The cubic root of 10397720 is about 218.2626243197.

The spelling of 10397720 in words is "ten million, three hundred ninety-seven thousand, seven hundred twenty".