70628406 has 16 divisors (see below), whose sum is σ = 141484224. Its totient is φ = 23504904.

The previous prime is 70628381. The next prime is 70628407. The reversal of 70628406 is 60482607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70628407) 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 7 ways as a sum of consecutive naturals, for example, 5296 + ... + 13011.

It is an arithmetic number, because the mean of its divisors is an integer number (8842764).

Almost surely, 2^70628406 is an apocalyptic number.

70628406 is an abundant number, since it is smaller than the sum of its proper divisors (70855818).

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

70628406 is a wasteful number, since it uses less digits than its factorization.

70628406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18955.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 70628406 is about 8404.0707993210. The cubic root of 70628406 is about 413.3581152039.

The spelling of 70628406 in words is "seventy million, six hundred twenty-eight thousand, four hundred six".