10621970 has 8 divisors (see below), whose sum is σ = 19119564. Its totient is φ = 4248784.

The previous prime is 10621967. The next prime is 10621973. The reversal of 10621970 is 7912601.

It is an interprime number because it is at equal distance from previous prime (10621967) and next prime (10621973).

It can be written as a sum of positive squares in 2 ways, for example, as 10543009 + 78961 = 3247^2 + 281^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×10621970² = 225652493361800, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (10621973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 531089 + ... + 531108.

Almost surely, 2^10621970 is an apocalyptic number.

10621970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10621970 is a deficient number, since it is larger than the sum of its proper divisors (8497594).

10621970 is a wasteful number, since it uses less digits than its factorization.

10621970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1062204.

The product of its (nonzero) digits is 756, while the sum is 26.

The square root of 10621970 is about 3259.1363886772. The cubic root of 10621970 is about 219.8205837483.

The spelling of 10621970 in words is "ten million, six hundred twenty-one thousand, nine hundred seventy".