70621859 has 16 divisors (see below), whose sum is σ = 93229056. Its totient is φ = 51792000.

The previous prime is 70621843. The next prime is 70621861. The reversal of 70621859 is 95812607.

70621859 = T₄₄₂ + T₄₄₃ + ... + T₇₉₈.

It is a cyclic number.

It is not a de Polignac number, because 70621859 - 2⁴ = 70621843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70621259) 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 15 ways as a sum of consecutive naturals, for example, 25667 + ... + 28284.

It is an arithmetic number, because the mean of its divisors is an integer number (5826816).

Almost surely, 2^70621859 is an apocalyptic number.

70621859 is a deficient number, since it is larger than the sum of its proper divisors (22607197).

70621859 is a wasteful number, since it uses less digits than its factorization.

70621859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53986.

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 70621859 is about 8403.6812766787. The cubic root of 70621859 is about 413.3453425375.

The spelling of 70621859 in words is "seventy million, six hundred twenty-one thousand, eight hundred fifty-nine".