69720050 has 12 divisors (see below), whose sum is σ = 129679386. Its totient is φ = 27888000.

The previous prime is 69720047. The next prime is 69720059. The reversal of 69720050 is 5002796.

It can be written as a sum of positive squares in 3 ways, for example, as 35485849 + 34234201 = 5957^2 + 5851^2 .

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 69719995 and 69720022.

It is not an unprimeable number, because it can be changed into a prime (69720059) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 697151 + ... + 697250.

Almost surely, 2^69720050 is an apocalyptic number.

69720050 is a deficient number, since it is larger than the sum of its proper divisors (59959336).

69720050 is a wasteful number, since it uses less digits than its factorization.

69720050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1394413 (or 1394408 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 69720050 is about 8349.8532921244. The cubic root of 69720050 is about 411.5783893571.

The spelling of 69720050 in words is "sixty-nine million, seven hundred twenty thousand, fifty".