69967420 has 48 divisors (see below), whose sum is σ = 151048800. Its totient is φ = 27213056.

The previous prime is 69967411. The next prime is 69967421. The reversal of 69967420 is 2476996.

69967420 = 151² + 152² + ... + 597².

It is a super-2 number, since 2×69967420² = 9790879722912800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69967421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 157719 + ... + 158161.

It is an arithmetic number, because the mean of its divisors is an integer number (3146850).

Almost surely, 2^69967420 is an apocalyptic number.

It is an amenable number.

69967420 is an abundant number, since it is smaller than the sum of its proper divisors (81081380).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

69967420 is a wasteful number, since it uses less digits than its factorization.

69967420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 654 (or 652 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 43.

The square root of 69967420 is about 8364.6530113329. The cubic root of 69967420 is about 412.0645812610.

The spelling of 69967420 in words is "sixty-nine million, nine hundred sixty-seven thousand, four hundred twenty".