788624421 has 32 divisors (see below), whose sum is σ = 1163355648. Its totient is φ = 472158720.

The previous prime is 788624413. The next prime is 788624449. The reversal of 788624421 is 124426887.

788624421 = T₂₈₆₁ + T₂₈₆₂ + ... + T₃₀₄₁.

It is not a de Polignac number, because 788624421 - 2³ = 788624413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (788624411) 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 31 ways as a sum of consecutive naturals, for example, 330585 + ... + 332961.

It is an arithmetic number, because the mean of its divisors is an integer number (36354864).

Almost surely, 2^788624421 is an apocalyptic number.

It is an amenable number.

788624421 is a deficient number, since it is larger than the sum of its proper divisors (374731227).

788624421 is a wasteful number, since it uses less digits than its factorization.

788624421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2621.

The product of its digits is 172032, while the sum is 42.

The square root of 788624421 is about 28082.4575313486. The cubic root of 788624421 is about 923.8966814913.

The spelling of 788624421 in words is "seven hundred eighty-eight million, six hundred twenty-four thousand, four hundred twenty-one".