69478970 has 64 divisors (see below), whose sum is σ = 143738496. Its totient is φ = 23950080.

The previous prime is 69478963. The next prime is 69478979. The reversal of 69478970 is 7987496.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (69478979) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 174812 + ... + 175208.

It is an arithmetic number, because the mean of its divisors is an integer number (2245914).

Almost surely, 2^69478970 is an apocalyptic number.

69478970 is an abundant number, since it is smaller than the sum of its proper divisors (74259526).

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

69478970 is a wasteful number, since it uses less digits than its factorization.

69478970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495.

The product of its (nonzero) digits is 762048, while the sum is 50.

The square root of 69478970 is about 8335.4046092556. The cubic root of 69478970 is about 411.1034523098.

The spelling of 69478970 in words is "sixty-nine million, four hundred seventy-eight thousand, nine hundred seventy".