70621874 has 4 divisors (see below), whose sum is σ = 105932814. Its totient is φ = 35310936.

The previous prime is 70621861. The next prime is 70621883. The reversal of 70621874 is 47812607.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 60730849 + 9891025 = 7793^2 + 3145^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 17655467 + ... + 17655470.

Almost surely, 2^70621874 is an apocalyptic number.

70621874 is a deficient number, since it is larger than the sum of its proper divisors (35310940).

70621874 is a wasteful number, since it uses less digits than its factorization.

70621874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35310939.

The product of its (nonzero) digits is 18816, while the sum is 35.

The square root of 70621874 is about 8403.6821691447. The cubic root of 70621874 is about 413.3453718022.

The spelling of 70621874 in words is "seventy million, six hundred twenty-one thousand, eight hundred seventy-four".