70321623 has 8 divisors (see below), whose sum is σ = 94338048. Its totient is φ = 46593144.

The previous prime is 70321621. The next prime is 70321627. The reversal of 70321623 is 32612307.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 70321623 - 2¹ = 70321621 is a prime.

It is a super-2 number, since 2×70321623² = 9890261322708258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 70321593 and 70321602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70321621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71415 + ... + 72392.

It is an arithmetic number, because the mean of its divisors is an integer number (11792256).

Almost surely, 2^70321623 is an apocalyptic number.

70321623 is a deficient number, since it is larger than the sum of its proper divisors (24016425).

70321623 is a wasteful number, since it uses less digits than its factorization.

70321623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143973.

The product of its (nonzero) digits is 1512, while the sum is 24.

The square root of 70321623 is about 8385.7988885973. The cubic root of 70321623 is about 412.7587562923.

The spelling of 70321623 in words is "seventy million, three hundred twenty-one thousand, six hundred twenty-three".