70474521 has 24 divisors (see below), whose sum is σ = 102362880. Its totient is φ = 43108416.

The previous prime is 70474499. The next prime is 70474559. The reversal of 70474521 is 12547407.

It is not a de Polignac number, because 70474521 - 2²² = 66280217 is a prime.

It is a super-2 number, since 2×70474521² = 9933316220358882, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (70474421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 115800 + ... + 116406.

It is an arithmetic number, because the mean of its divisors is an integer number (4265120).

Almost surely, 2^70474521 is an apocalyptic number.

It is an amenable number.

70474521 is a deficient number, since it is larger than the sum of its proper divisors (31888359).

70474521 is a wasteful number, since it uses less digits than its factorization.

70474521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 865 (or 852 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 30.

The square root of 70474521 is about 8394.9104223928. The cubic root of 70474521 is about 413.0576890220.

The spelling of 70474521 in words is "seventy million, four hundred seventy-four thousand, five hundred twenty-one".