127421804 has 6 divisors (see below), whose sum is σ = 222988164. Its totient is φ = 63710900.

The previous prime is 127421797. The next prime is 127421807. The reversal of 127421804 is 408124721.

It is a super-2 number, since 2×127421804² = 32472632269228832, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (127421807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15927722 + ... + 15927729.

It is an arithmetic number, because the mean of its divisors is an integer number (37164694).

Almost surely, 2^127421804 is an apocalyptic number.

It is an amenable number.

127421804 is a deficient number, since it is larger than the sum of its proper divisors (95566360).

127421804 is a wasteful number, since it uses less digits than its factorization.

127421804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31855455 (or 31855453 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 29.

The square root of 127421804 is about 11288.1266824925. The cubic root of 127421804 is about 503.2084397909.

The spelling of 127421804 in words is "one hundred twenty-seven million, four hundred twenty-one thousand, eight hundred four".