126897906 has 16 divisors (see below), whose sum is σ = 253915200. Its totient is φ = 42279408.

The previous prime is 126897899. The next prime is 126897907. The reversal of 126897906 is 609798621.

It is a super-2 number, since 2×126897906² = 32206157094369672, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (126897907) 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, 15040 + ... + 21908.

It is an arithmetic number, because the mean of its divisors is an integer number (15869700).

Almost surely, 2^126897906 is an apocalyptic number.

126897906 is an abundant number, since it is smaller than the sum of its proper divisors (127017294).

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

126897906 is a wasteful number, since it uses less digits than its factorization.

126897906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9953.

The product of its (nonzero) digits is 326592, while the sum is 48.

The square root of 126897906 is about 11264.8970701023. The cubic root of 126897906 is about 502.5178410041.

The spelling of 126897906 in words is "one hundred twenty-six million, eight hundred ninety-seven thousand, nine hundred six".