107478778 has 16 divisors (see below), whose sum is σ = 176618880. Its totient is φ = 48647200.

The previous prime is 107478757. The next prime is 107478779. The reversal of 107478778 is 877874701.

It is not an unprimeable number, because it can be changed into a prime (107478779) 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, 4963 + ... + 15478.

It is an arithmetic number, because the mean of its divisors is an integer number (11038680).

Almost surely, 2^107478778 is an apocalyptic number.

107478778 is the 5542-nd centered heptagonal number.

107478778 is a deficient number, since it is larger than the sum of its proper divisors (69140102).

107478778 is a wasteful number, since it uses less digits than its factorization.

107478778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20693.

The product of its (nonzero) digits is 614656, while the sum is 49.

The square root of 107478778 is about 10367.1972104325. The cubic root of 107478778 is about 475.4529795172.

The spelling of 107478778 in words is "one hundred seven million, four hundred seventy-eight thousand, seven hundred seventy-eight".