70474945 has 16 divisors (see below), whose sum is σ = 90132048. Its totient is φ = 52715520.

The previous prime is 70474927. The next prime is 70474951. The reversal of 70474945 is 54947407.

70474945 is nontrivially palindromic in base 4.

It can be written as a sum of positive squares in 8 ways, for example, as 3873024 + 66601921 = 1968^2 + 8161^2 .

It is not a de Polignac number, because 70474945 - 2⁹ = 70474433 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 70474898 and 70474907.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10705 + ... + 15985.

It is an arithmetic number, because the mean of its divisors is an integer number (5633253).

Almost surely, 2^70474945 is an apocalyptic number.

It is an amenable number.

70474945 is a deficient number, since it is larger than the sum of its proper divisors (19657103).

70474945 is a wasteful number, since it uses less digits than its factorization.

70474945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5460.

The product of its (nonzero) digits is 141120, while the sum is 40.

The square root of 70474945 is about 8394.9356757512. The cubic root of 70474945 is about 413.0585173881.

The spelling of 70474945 in words is "seventy million, four hundred seventy-four thousand, nine hundred forty-five".