106687428 has 24 divisors (see below), whose sum is σ = 255666432. Its totient is φ = 34601184.

The previous prime is 106687421. The next prime is 106687439. The reversal of 106687428 is 824786601.

It is a super-2 number, since 2×106687428² = 22764414586510368, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 106687428.

It is not an unprimeable number, because it can be changed into a prime (106687421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119700 + ... + 120587.

It is an arithmetic number, because the mean of its divisors is an integer number (10652768).

Almost surely, 2^106687428 is an apocalyptic number.

It is an amenable number.

106687428 is an abundant number, since it is smaller than the sum of its proper divisors (148979004).

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

106687428 is a wasteful number, since it uses less digits than its factorization.

106687428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240331 (or 240329 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 42.

The square root of 106687428 is about 10328.9606447115. The cubic root of 106687428 is about 474.2832077058.

The spelling of 106687428 in words is "one hundred six million, six hundred eighty-seven thousand, four hundred twenty-eight".