101978630 has 16 divisors (see below), whose sum is σ = 197681904. Its totient is φ = 37653600.

The previous prime is 101978629. The next prime is 101978633. The reversal of 101978630 is 36879101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101978633) 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, 392096 + ... + 392355.

It is an arithmetic number, because the mean of its divisors is an integer number (12355119).

Almost surely, 2^101978630 is an apocalyptic number.

101978630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101978630 is a deficient number, since it is larger than the sum of its proper divisors (95703274).

101978630 is a wasteful number, since it uses less digits than its factorization.

101978630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 784471.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 101978630 is about 10098.4469102927. The cubic root of 101978630 is about 467.2002406006.

The spelling of 101978630 in words is "one hundred one million, nine hundred seventy-eight thousand, six hundred thirty".