100670409 has 12 divisors (see below), whose sum is σ = 166186176. Its totient is φ = 57525912.

The previous prime is 100670399. The next prime is 100670419. The reversal of 100670409 is 904076001.

It is an interprime number because it is at equal distance from previous prime (100670399) and next prime (100670419).

It is not a de Polignac number, because 100670409 - 2⁸ = 100670153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (100670419) 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, 798909 + ... + 799034.

It is an arithmetic number, because the mean of its divisors is an integer number (13848848).

Almost surely, 2^100670409 is an apocalyptic number.

It is an amenable number.

100670409 is a deficient number, since it is larger than the sum of its proper divisors (65515767).

100670409 is a wasteful number, since it uses less digits than its factorization.

100670409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1597956 (or 1597953 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 100670409 is about 10033.4644565075. The cubic root of 100670409 is about 465.1938283168.

The spelling of 100670409 in words is "one hundred million, six hundred seventy thousand, four hundred nine".