70628481 has 24 divisors (see below), whose sum is σ = 127193664. Its totient is φ = 36689760.

The previous prime is 70628479. The next prime is 70628497. The reversal of 70628481 is 18482607.

It is not a de Polignac number, because 70628481 - 2¹ = 70628479 is a prime.

It is a super-2 number, since 2×70628481² = 9976764656734722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (70628471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 50266 + ... + 51651.

It is an arithmetic number, because the mean of its divisors is an integer number (5299736).

Almost surely, 2^70628481 is an apocalyptic number.

It is an amenable number.

70628481 is a deficient number, since it is larger than the sum of its proper divisors (56565183).

70628481 is a wasteful number, since it uses less digits than its factorization.

70628481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101941 (or 101938 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 70628481 is about 8404.0752614431. The cubic root of 70628481 is about 413.3582615183.

The spelling of 70628481 in words is "seventy million, six hundred twenty-eight thousand, four hundred eighty-one".