10721494 has 16 divisors (see below), whose sum is σ = 18756000. Its totient is φ = 4594632.

The previous prime is 10721489. The next prime is 10721549. The reversal of 10721494 is 49412701.

10721494 is digitally balanced in base 2 and base 8, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×10721494² = 229900867184072, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

10721494 is strictly pandigital in base 8.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7129 + ... + 8500.

It is an arithmetic number, because the mean of its divisors is an integer number (1172250).

Almost surely, 2^10721494 is an apocalyptic number.

10721494 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

10721494 is a deficient number, since it is larger than the sum of its proper divisors (8034506).

10721494 is an equidigital number, since it uses as much as digits as its factorization.

10721494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15652 (or 15638 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 10721494 is about 3274.3692522377. The cubic root of 10721494 is about 220.5049969473.

The spelling of 10721494 in words is "ten million, seven hundred twenty-one thousand, four hundred ninety-four".