70628361 has 4 divisors (see below), whose sum is σ = 94171152. Its totient is φ = 47085572.

The previous prime is 70628359. The next prime is 70628381. The reversal of 70628361 is 16382607.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 16382607 = 3 ⋅5460869.

It is a cyclic number.

It is not a de Polignac number, because 70628361 - 2¹ = 70628359 is a prime.

It is not an unprimeable number, because it can be changed into a prime (70628321) 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 3 ways as a sum of consecutive naturals, for example, 11771391 + ... + 11771396.

It is an arithmetic number, because the mean of its divisors is an integer number (23542788).

Almost surely, 2^70628361 is an apocalyptic number.

It is an amenable number.

70628361 is a deficient number, since it is larger than the sum of its proper divisors (23542791).

70628361 is a wasteful number, since it uses less digits than its factorization.

70628361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23542790.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 70628361 is about 8404.0681220466. The cubic root of 70628361 is about 413.3580274153.

The spelling of 70628361 in words is "seventy million, six hundred twenty-eight thousand, three hundred sixty-one".